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Radiant|Natural|GIA

0.51ct G SI2 Radiant Natural Diamond

ID • G/SI2 • GIA 2556750688

Certificate GIA 2556750688

Diamond specifications and retailer prices

From $573 SGD
$448 USD
As of November 1, 2026
Save $1,653 SGD (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,226 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant 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 2556750688. Listed at 17 retailers as of October 30, 2026, with prices from $573 to $2,226, a $1,653 spread on the same certified stone. NZ Jewellers lists it at $2,226. 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
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle53.9°
OriginNatural
Grading LabGIA
CertificateGIA 2556750688
Dimensions5.96 × 3.87 × 2.61 mm
L/W Ratio1.54
Girdle conditionPolished
Culet sizeNone
Top View
5.96 mm3.87 mm0.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556750688
Side View
Table 66.0%Crown 36°Girdle: MED-STKPavilion 53.9°Culet: NoneDepth 67.5%

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 1
Current: $2,226 SGD|Low: $505 SGD|High: $2,300 SGD|Avg: $867 SGD|-3.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 15$573 SGD
Retailer 6$593 SGD
Retailer 2$607 SGD
Retailer 4$643 SGD
Retailer 9$655 SGD
Retailer 7$693 SGD
Retailer 8$693 SGD
Retailer 3$741 SGD
Retailer 13$748 SGD
Retailer 5$779 SGD
Retailer 10$848 SGD
Retailer 11$889 SGD
Retailer 16$889 SGD
Retailer 17$903 SGD
Retailer 14$953 SGD
Retailer 12$1,640 SGD
NZ Jewellers$2,226 SGD

36 data points across 17 retailers

17 retailers$573 SGD to $2,226 SGD

A
Cheapest Retailer
-
$573 SGD
$448 USD
A
Retailer 2
-
$593 SGD
$464 USD
View
Final sale: no returns
A
Retailer 3
-
$607 SGD
$475 USD
View
A
Retailer 4
-
$643 SGD
$503 USD
View
A
Retailer 5
-
$655 SGD
HK$4,000 HKD
View
A
Retailer 6
-
$693 SGD
$542 USD
View
A
Retailer 7
-
$693 SGD
$542 USD
View
A
Retailer 8
-
$741 SGD
$580 USD
View
A
Retailer 9
-
$748 SGD
$585 USD
View
A
Retailer 10
-
$779 SGD
$609 USD
View
A
Retailer 11
-
$848 SGD
£522 GBP
View
A
Retailer 12
-
$889 SGD
£548 GBP
View
A
Retailer 13
-
$889 SGD
£548 GBP
View
A
Retailer 14
-
$903 SGD
$706 USD
View
B+
Retailer 15
-
$953 SGD
€710 EUR
View
B
Retailer 16
-
$1,640 SGD
£1,010 GBP
View
Most Expensive
B
NZ Jewellers
e6671163-bf29-4252-8837-769f134d2016 · Oct 30
$2,226 SGD
$1,741 USD
View
16 more retailers have this diamond
Prices start from $573 SGDSave up to $1,653 SGD

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 Radiant
$573 SGD