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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2566156295

Certificate GIA 2566156295

Diamond specifications and retailer prices

From €3,783 EUR
As of November 7, 2026
Save €3,067 EUR (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €6,850 EUR at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 2566156295. Listed at 13 retailers as of November 6, 2026, with prices from €3,783 to €6,850, a €3,067 spread on the same certified stone. Wholesale Diamonds Direct lists it at €6,850. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.24°
Pavilion angle39.43°
OriginNatural
Grading LabGIA
CertificateGIA 2566156295
Dimensions8.95 × 6.42 × 3.96 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.95 mm6.42 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566156295
Side View
Table 60.0%Crown 40.24°Girdle: MED-THKPavilion 39.43°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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: Nov 7
Current: €3,849 EUR|Low: €3,783 EUR|High: €7,630 EUR|Avg: €4,836 EUR|-9.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 7, 2026
Retailer 10€3,783 EUR
Retailer 1€3,849 EUR
Retailer 7€3,891 EUR
Retailer 8€3,995 EUR
Retailer 3€4,062 EUR
Retailer 4€4,076 EUR
Retailer 2€4,100 EUR
Retailer 5€4,244 EUR
Retailer 11€4,727 EUR
Retailer 12€4,738 EUR
Retailer 6€4,840 EUR
Retailer 9€6,337 EUR
Wholesale Diamonds Direct€6,850 EUR

33 data points across 13 retailers

13 retailers€3,783 EUR to €6,850 EUR

A
Cheapest Retailer
-
€3,783 EUR
A
Retailer 2
-
€3,849 EUR
View
A
Retailer 3
-
€3,891 EUR
View
A
Retailer 4
-
€3,995 EUR
View
A
Retailer 5
-
€4,062 EUR
View
A
Retailer 6
-
€4,076 EUR
View
A
Retailer 7
-
€4,100 EUR
View
A
Retailer 8
-
€4,244 EUR
View
A
Retailer 9
-
€4,727 EUR
View
A
Retailer 10
-
€4,738 EUR
View
A
Retailer 11
-
€4,840 EUR
View
B+
Retailer 12
-
€6,337 EUR
View
Most Expensive
B+
Wholesale Diamonds Direct
579393277 · Nov 6
€6,850 EUR
$7,648 USD
View
12 more retailers have this diamond
Prices start from €3,783 EURSave up to €3,067 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
€3,783 EUR