CaratHunter
Plans
Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5556899066

Certificate GIA 5556899066

Diamond specifications and retailer prices

From $670 USD
SGD 905 SGD
As of October 31, 2026
Save $428 USD (39%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,098 USD at Frank Darling · As of November 2, 2026
View at Frank Darling

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556899066. Listed at 10 retailers as of October 31, 2026, with prices from $670 to $1,098, a $428 spread on the same certified stone. Frank Darling lists it at $1,098. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.23°
Pavilion angle41.68°
OriginNatural
Grading LabGIA
CertificateGIA 5556899066
Dimensions6.39 × 4.57 × 2.83 mm
L/W Ratio1.40
Culet sizeNone
Top View
6.39 mm4.57 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556899066
Side View
Table 58.0%Crown 36.23°Girdle: THN-THKPavilion 41.68°Culet: NoneDepth 61.9%

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: $1,098 USD|Low: $670 USD|High: $1,098 USD|Avg: $898 USD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5$670 USD
Retailer 3$795 USD
Retailer 2$943 USD
Retailer 4$992 USD
Frank Darling$1,098 USD

46 data points across 5 retailers

10 retailers$670 USD to $1,098 USD

A
Cheapest Retailer
-
$670 USD
SGD 905 SGD
A
Retailer 2
-
$670 USD
View
A
Retailer 3
-
$676 USD
SGD 914 SGD
View
B+
Retailer 4
-
$790 USD
View
B+
Retailer 5
-
$795 USD
£626 GBP
View
B
Retailer 6
-
$880 USD
View
B+
Retailer 7
-
$943 USD
€898 EUR
View
B
Retailer 8
-
$992 USD
View
B
Retailer 9
-
$1,008 USD
View
Most Expensive
B
Frank Darling
2668614HK · Nov 2
$1,098 USD
View
9 more retailers have this diamond
Prices start from $670 USDSave up to $428 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
$670 USD