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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6555458202

Certificate GIA 6555458202

Diamond specifications and retailer prices

From €4,993 EUR
$5,578 USD
As of October 28, 2026
Save €5,644 EUR (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €10,636 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555458202. Listed at 19 retailers as of October 27, 2026, with prices from €4,993 to €10,636, a €5,644 spread on the same certified stone. NZ Jewellers lists it at €10,636. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle36.4°
OriginNatural
Grading LabGIA
CertificateGIA 6555458202
Dimensions9.12 × 6.38 × 3.97 mm
L/W Ratio1.43
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
9.12 mm6.38 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555458202
Side View
Table 60.0%Crown 38.3°Girdle: STK-THKPavilion 36.4°Culet: NoneDepth 62.2%

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: €10,636 EUR|Low: €5,268 EUR|High: €10,636 EUR|Avg: €6,836 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
October 29, 2026
Retailer 10€5,268 EUR
Retailer 9€5,333 EUR
Retailer 3€5,574 EUR
Retailer 4€5,870 EUR
Retailer 12€5,870 EUR
Retailer 2€6,080 EUR
Retailer 6€6,239 EUR
Retailer 8€6,360 EUR
Retailer 11€6,457 EUR
Retailer 5€6,617 EUR
Retailer 13€7,338 EUR
Retailer 7€9,419 EUR
NZ Jewellers€10,636 EUR

41 data points across 13 retailers

19 retailers€4,993 EUR to €10,636 EUR

B+
Cheapest Retailer
-
€4,993 EUR
$5,578 USD
Retailer 2
-
€5,268 EUR
$5,885 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
€5,333 EUR
SGD 8,052 SGD
View
B+
Retailer 4
-
€5,546 EUR
$6,196 USD
View
B+
Retailer 5
-
€5,574 EUR
$6,227 USD
View
B+
Retailer 6
-
€5,870 EUR
$6,558 USD
View
Final sale: no returns
Retailer 7
-
€5,870 EUR
$6,558 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
€6,080 EUR
£5,348 GBP
View
B+
Retailer 9
-
€6,239 EUR
£5,489 GBP
View
B
Retailer 10
-
€6,275 EUR
$7,010 USD
View
Retailer 11
-
€6,360 EUR
$7,105 USD
View
Price last confirmed 69 days ago
B
Retailer 12
-
€6,360 EUR
$7,105 USD
View
Retailer 13
-
€6,457 EUR
$7,214 USD
View
Price last confirmed 7 days ago
Retailer 14
-
€6,504 EUR
$7,266 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
€6,617 EUR
$7,392 USD
View
B
Retailer 16
-
€7,338 EUR
$8,198 USD
View
Retailer 17
-
€7,338 EUR
$8,198 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
€9,419 EUR
£8,286 GBP
View
Most Expensive
B
NZ Jewellers
1f934872-43fd-4ffb-8f38-2d02d3b5b9af · Oct 27
€10,636 EUR
$11,883 USD
View
18 more retailers have this diamond
Prices start from €4,993 EURSave up to €5,644 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
€4,993 EUR