Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6552615943

Certificate GIA 6552615943

Diamond specifications and retailer prices

From €4,394 EUR
$4,909 USD
As of October 26, 2026
Save €1,311 EUR (23%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: €9,609 EUR at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552615943. Listed at 31 retailers as of October 26, 2026, with a 30% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.12°
Pavilion angle38.97°
OriginNatural
Grading LabGIA
CertificateGIA 6552615943
Dimensions8.90 × 6.39 × 3.98 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.90 mm6.39 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552615943
Side View
Table 58.0%Crown 40.12°Girdle: MED-THKPavilion 38.97°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: €9,609 EUR|Low: €3,062 EUR|High: €9,609 EUR|Avg: €5,334 EUR
NZ Jewellers
Retailer 2
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Retailer 31
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Retailer 33
Retailer 34
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Retailer 36
October 26, 2026
Retailer 30€3,062 EUR
Retailer 27€3,987 EUR
Retailer 25€3,997 EUR
Retailer 26€4,309 EUR
Retailer 34€4,314 EUR
Retailer 24€4,394 EUR
Retailer 35€4,488 EUR
Retailer 17€4,539 EUR
Retailer 2€4,541 EUR
Retailer 6€4,598 EUR
Retailer 20€4,803 EUR
Retailer 14€4,860 EUR
Retailer 18€5,036 EUR
Retailer 21€5,115 EUR
Retailer 12€5,137 EUR
Retailer 3€5,205 EUR
Retailer 8€5,205 EUR
Retailer 15€5,205 EUR
Retailer 10€5,298 EUR
Retailer 7€5,436 EUR
Retailer 22€5,448 EUR
Retailer 31€5,462 EUR
Retailer 13€5,505 EUR
Retailer 23€5,705 EUR
Retailer 11€5,809 EUR
Retailer 32€5,809 EUR
Retailer 19€5,885 EUR
Retailer 36€5,890 EUR
Retailer 33€5,997 EUR
Retailer 16€6,005 EUR
Retailer 28€6,657 EUR
Retailer 29€6,952 EUR
Retailer 5€6,974 EUR
Retailer 9€8,326 EUR
Retailer 4€8,510 EUR
NZ Jewellers€9,609 EUR

23 data points across 36 retailers

31 retailers€4,394 EUR to €5,705 EUR

Retailer 1
-
€4,314 EUR
$4,820 USD
Price last confirmed 11 days ago
A
Retailer 2
-
€4,394 EUR
$4,909 USD
View
Retailer 3
-
€4,488 EUR
$5,014 USD
View
Price last confirmed 11 days ago
Retailer 4
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€4,539 EUR
$5,071 USD
View
Price last confirmed 12 days ago
A
Retailer 5
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€4,541 EUR
$5,074 USD
View
Retailer 6
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€4,598 EUR
$5,137 USD
View
Price last confirmed 11 days ago
Retailer 7
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€4,655 EUR
$5,201 USD
View
Price last confirmed 13 days ago
Retailer 8
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€4,860 EUR
$5,430 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
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€4,939 EUR
$5,518 USD
View
B+
Retailer 10
-
€5,036 EUR
CA$7,815 CAD
View
B+
Retailer 11
-
€5,115 EUR
$5,714 USD
View
Retailer 12
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€5,137 EUR
$5,739 USD
View
Price last confirmed 14 days ago
Retailer 13
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€5,205 EUR
$5,815 USD
View
Price last confirmed 16 days ago
Retailer 14
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€5,205 EUR
$5,815 USD
View
Price last confirmed 12 days ago
Retailer 15
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€5,205 EUR
$5,815 USD
View
Price last confirmed 16 days ago
Retailer 16
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€5,298 EUR
$5,919 USD
View
Price last confirmed 11 days ago
Retailer 17
-
€5,436 EUR
$6,073 USD
View
Price last confirmed 12 days ago
Retailer 18
-
€5,448 EUR
$6,086 USD
View
Price last confirmed 11 days ago
Retailer 19
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€5,462 EUR
£4,805 GBP
View
Price last confirmed 11 days ago
Retailer 20
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€5,505 EUR
£4,842 GBP
View
Price last confirmed 10 days ago
B+
Retailer 21
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€5,705 EUR
$6,374 USD
View
Retailer 22
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€5,809 EUR
$6,490 USD
View
Price last confirmed 12 days ago
Retailer 23
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€5,809 EUR
$6,490 USD
View
Price last confirmed 13 days ago
Retailer 24
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€5,885 EUR
$6,575 USD
View
Price last confirmed 11 days ago
Retailer 25
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€5,997 EUR
$6,700 USD
View
Price last confirmed 11 days ago
Retailer 26
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€6,005 EUR
$6,709 USD
View
Price last confirmed 11 days ago
Retailer 27
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€6,952 EUR
$7,767 USD
View
Price last confirmed 37 days ago
Retailer 28
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€6,974 EUR
ZAR 125,871 ZAR
View
Price last confirmed 15 days ago
Retailer 29
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€8,326 EUR
$9,302 USD
View
Price last confirmed 13 days ago
Retailer 30
-
€8,510 EUR
£7,486 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
4c5ebf8d-add2-4a1c-aa2d-7fa88683f094 · Oct 20
€9,609 EUR
$10,735 USD
View
Price last confirmed 12 days ago
30 more retailers have this diamond
Prices start from €4,394 EURSave up to €1,311 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Oval
€4,394 EUR