Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6565300031

Certificate GIA 6565300031

Diamond specifications and retailer prices

From $758 USD
As of November 2, 2026
10 retailers carry this diamond
Most expensive: $1,982 USD at NZ Jewellers · As of October 23, 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 G 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 6565300031. Listed at 10 retailers as of November 2, 2026. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565300031
Dimensions6.44 × 4.34 × 2.77 mm
L/W Ratio1.48
Girdle conditionVery Thick
Top View
6.44 mm4.34 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565300031
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.8%

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: Nov 2
Current: $1,982 USD|Low: $404 USD|High: $2,002 USD|Avg: $908 USD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 24, 2026
Retailer 12$444 USD
Retailer 6$474 USD
Retailer 10$715 USD
Retailer 5$737 USD
Retailer 4$758 USD
Retailer 11$764 USD
Retailer 2$776 USD
Retailer 8$923 USD
Retailer 3$960 USD
Retailer 7$964 USD
Retailer 9$1,467 USD
NZ Jewellers$1,982 USD

26 data points across 12 retailers

10 retailers

Retailer 1
-
$474 USD
₹45,143 INR
Price last confirmed 10 days ago
Retailer 2
-
$715 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$737 USD
£580 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$758 USD
View
Retailer 5
-
$764 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$776 USD
£611 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$960 USD
A$1,477 AUD
View
Price last confirmed 29 days ago
Retailer 8
-
$964 USD
ZAR 15,579 ZAR
View
Price last confirmed 11 days ago
Retailer 9
-
$1,467 USD
£1,155 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
b89befe1-dab5-4dbc-97ee-e8bfcf4c71b3 · Oct 23
$1,982 USD
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from $758 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.

B+
0.51ct Oval
$758 USD