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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

ID • D/SI2 • GIA 7528907538

Certificate GIA 7528907538

Diamond specifications and retailer prices

From $732 USD
As of October 31, 2026
Save $1,256 USD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,664 USD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7528907538. Listed at 11 retailers as of October 28, 2026, with a 172% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7528907538
Dimensions7.60 × 3.65 × 2.17 mm
L/W Ratio2.08
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
7.60 mm3.65 mm0.51 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7528907538
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.4%

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: $1,124 USD|Low: $718 USD|High: $2,038 USD|Avg: $1,249 USD|-9.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4$732 USD
Retailer 6$770 USD
Retailer 2$926 USD
Retailer 7$978 USD
Retailer 1$1,124 USD
Retailer 8$1,363 USD
Retailer 3$1,462 USD
Retailer 9$1,489 USD
Retailer 5$1,988 USD

33 data points across 9 retailers

11 retailers$732 USD to $1,988 USD

A
Cheapest Retailer
-
$732 USD
Final sale: no returns
A
Retailer 2
-
$770 USD
View
Retailer 3
-
$850 USD
View
Price last confirmed 16 days ago
Retailer 4
-
$850 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$882 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$926 USD
View
Retailer 7
-
$980 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$1,124 USD
€1,070 EUR
View
B
Retailer 9
-
$1,462 USD
£1,151 GBP
View
B
Retailer 10
-
$1,988 USD
£1,565 GBP
View
Most Expensive
NZ Jewellers
c90a8430-0570-4fce-839c-c8429a544cac · Oct 17
$2,664 USD
View
Price under review
10 more retailers have this diamond
Prices start from $732 USDSave up to $1,256 USD

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
0.51ct Oval
$732 USD