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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6521073458

Certificate GIA 6521073458

Diamond specifications and retailer prices

From €5,808 EUR
$6,489 USD
As of October 28, 2026
Save €6,488 EUR (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €12,296 EUR at NZ Jewellers · As of October 27, 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 H 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 6521073458. Listed at 24 retailers as of October 27, 2026, with prices from €5,808 to €12,296, a €6,488 spread on the same certified stone. NZ Jewellers lists it at €12,296. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.88°
Pavilion angle39.48°
OriginNatural
Grading LabGIA
CertificateGIA 6521073458
Dimensions9.06 × 6.44 × 3.96 mm
L/W Ratio1.41
Top View
9.06 mm6.44 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6521073458
Side View
Table 60.0%Crown 36.88°Girdle: MED-THKPavilion 39.48°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €12,296 EUR|Low: €5,635 EUR|High: €12,296 EUR|Avg: €7,546 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 7€5,808 EUR
Retailer 11€5,849 EUR
Retailer 6€6,147 EUR
Retailer 19€6,147 EUR
Retailer 8€6,154 EUR
Retailer 9€6,198 EUR
Retailer 10€6,620 EUR
Retailer 17€6,660 EUR
Retailer 18€6,762 EUR
Retailer 2€6,936 EUR
Retailer 12€6,967 EUR
Retailer 4€7,047 EUR
Retailer 5€7,049 EUR
Retailer 3€7,684 EUR
Retailer 14€8,020 EUR
Retailer 16€8,951 EUR
Retailer 15€10,259 EUR
Retailer 13€10,300 EUR
NZ Jewellers€12,296 EUR

28 data points across 19 retailers

24 retailers€5,808 EUR to €12,296 EUR

B+
Cheapest Retailer
-
€5,808 EUR
$6,489 USD
B+
Retailer 2
-
€5,849 EUR
$6,534 USD
View
B+
Retailer 3
-
€6,147 EUR
$6,868 USD
View
B+
Retailer 4
-
€6,154 EUR
$6,875 USD
View
B+
Retailer 5
-
€6,198 EUR
$6,925 USD
View
Retailer 6
-
€6,547 EUR
$7,314 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
€6,620 EUR
$7,396 USD
View
B
Retailer 8
-
€6,660 EUR
$7,441 USD
View
B+
Retailer 9
-
€6,762 EUR
$7,555 USD
View
B+
Retailer 10
-
€6,936 EUR
£6,102 GBP
View
B+
Retailer 11
-
€6,967 EUR
£6,129 GBP
View
Retailer 12
-
€7,047 EUR
A$12,112 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
€7,049 EUR
$7,875 USD
View
Retailer 14
-
€7,049 EUR
$7,875 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
€7,080 EUR
$7,910 USD
View
B+
Retailer 16
-
€7,080 EUR
$7,910 USD
View
B
Retailer 17
-
€7,322 EUR
$8,180 USD
View
B
Retailer 18
-
€7,422 EUR
$8,292 USD
View
B
Retailer 19
-
€7,684 EUR
$8,585 USD
View
B
Retailer 20
-
€8,020 EUR
View
B
Retailer 21
-
€8,951 EUR
ZAR 161,553 ZAR
View
B
Retailer 22
-
€10,259 EUR
£9,025 GBP
View
B
Retailer 23
-
€10,300 EUR
£9,061 GBP
View
Most Expensive
B
NZ Jewellers
98e39236-a9fd-413f-9a9e-022d36809849 · Oct 27
€12,296 EUR
$13,737 USD
View
23 more retailers have this diamond
Prices start from €5,808 EURSave up to €6,488 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.

B+
1.51ct Oval
€5,808 EUR