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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 1236628132

Certificate GIA 1236628132

Diamond specifications and retailer prices

From €474 EUR
$530 USD
As of October 31, 2026
Save €221 EUR (32%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €695 EUR at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter 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 1236628132. Listed at 2 retailers as of October 31, 2026, with prices from €474 to €695, a €221 spread on the same certified stone. 77 Diamonds lists it at €695. 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

0.51
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236628132
Dimensions5.92 × 4.52 × 2.97 mm
L/W Ratio1.31
Top View
5.92 mm4.52 mm0.51 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1236628132
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 65.6%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €695 EUR|Low: €470 EUR|High: €696 EUR|Avg: €583 EUR|+1.6%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2€474 EUR
77 Diamonds€695 EUR

33 data points across 2 retailers

2 retailers€474 EUR to €695 EUR

B+
Cheapest Retailer
-
€474 EUR
$530 USD
Most Expensive
B
77 Diamonds
OVMBQZQR3ZAG · Nov 1
€695 EUR
£611 GBP
View
1 more retailer has this diamond
Prices start from €474 EURSave up to €221 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+
0.51ct Oval
€474 EUR