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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

ID • I/SI2 • GIA 1555553685

Certificate GIA 1555553685

Diamond specifications and retailer prices

From €3,896 EUR
$4,353 USD
As of October 31, 2026
Save €4,510 EUR (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €8,407 EUR at NZ Jewellers · As of October 30, 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 1555553685. Listed at 19 retailers as of October 30, 2026, with prices from €3,896 to €8,407, a €4,510 spread on the same certified stone. NZ Jewellers lists it at €8,407. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.83°
OriginNatural
Grading LabGIA
CertificateGIA 1555553685
Dimensions9.39 × 6.15 × 3.91 mm
L/W Ratio1.53
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural, Needle, Natural
Top View
9.39 mm6.15 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555553685
Side View
Table 63.0%Crown 37.83°Girdle: MED-VTKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €8,407 EUR|Low: €3,852 EUR|High: €8,407 EUR|Avg: €5,093 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
November 2, 2026
Retailer 17€3,885 EUR
Retailer 15€3,896 EUR
Retailer 5€3,971 EUR
Retailer 4€4,203 EUR
Retailer 6€4,238 EUR
Retailer 10€4,509 EUR
Retailer 16€4,553 EUR
Retailer 18€4,553 EUR
Retailer 19€4,553 EUR
Retailer 11€4,786 EUR
Retailer 13€4,903 EUR
Retailer 12€4,904 EUR
Retailer 8€5,102 EUR
Retailer 9€5,102 EUR
Retailer 3€5,254 EUR
Retailer 7€5,272 EUR
Retailer 2€5,686 EUR
Retailer 14€8,048 EUR
NZ Jewellers€8,407 EUR

37 data points across 19 retailers

19 retailers€3,896 EUR to €8,407 EUR

Retailer 1
-
€3,885 EUR
$4,340 USD
Price last confirmed 14 days ago
A
Retailer 2
-
€3,896 EUR
$4,353 USD
View
A
Retailer 3
-
€3,971 EUR
$4,436 USD
View
A
Retailer 4
-
€4,203 EUR
$4,696 USD
View
Final sale: no returns
A
Retailer 5
-
€4,238 EUR
$4,735 USD
View
A
Retailer 6
-
€4,509 EUR
$5,038 USD
View
A
Retailer 7
-
€4,553 EUR
$5,087 USD
View
A
Retailer 8
-
€4,553 EUR
$5,087 USD
View
A
Retailer 9
-
€4,553 EUR
$5,087 USD
View
B+
Retailer 10
-
€4,786 EUR
$5,347 USD
View
B+
Retailer 11
-
€4,903 EUR
£4,313 GBP
View
B+
Retailer 12
-
€4,904 EUR
£4,314 GBP
View
B+
Retailer 13
-
€5,102 EUR
$5,700 USD
View
B+
Retailer 14
-
€5,102 EUR
$5,700 USD
View
B+
Retailer 15
-
€5,254 EUR
$5,870 USD
View
B+
Retailer 16
-
€5,272 EUR
$5,890 USD
View
B+
Retailer 17
-
€5,686 EUR
View
B
Retailer 18
-
€8,048 EUR
£7,080 GBP
View
Most Expensive
B
NZ Jewellers
5043f498-1c39-423c-940e-e73d23376a8c · Oct 30
€8,407 EUR
$9,392 USD
View
18 more retailers have this diamond
Prices start from €3,896 EURSave up to €4,510 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
€3,896 EUR