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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 7551317215

Certificate GIA 7551317215

Diamond specifications and retailer prices

From $494 SGD
As of November 6, 2026
Save $1,611 SGD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,105 SGD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551317215. Listed at 15 retailers as of November 4, 2026, with prices from $494 to $2,105, a $1,611 spread on the same certified stone. NZ Jewellers lists it at $2,105. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7551317215
Dimensions5.09 × 5.12 × 3.19 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Feather, Cloud
Top View
5.09 mm5.12 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551317215
Side View
Table 57.0%Crown 35°Girdle: THN-MEDPavilion 41.4°Culet: NDepth 62.4%

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: Nov 6
Current: $2,105 SGD|Low: $494 SGD|High: $2,152 SGD|Avg: $870 SGD|-2.2%
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
November 6, 2026
Retailer 2$494 SGD
Retailer 3$534 SGD
Retailer 4$572 SGD
Retailer 7$649 SGD
Retailer 15$672 SGD
Retailer 5$717 SGD
Retailer 12$723 SGD
Retailer 6$733 SGD
Retailer 11$775 SGD
Retailer 9$829 SGD
Retailer 13$839 SGD
Retailer 8$907 SGD
Retailer 10$932 SGD
Retailer 14$1,551 SGD
NZ Jewellers$2,105 SGD

28 data points across 15 retailers

15 retailers$494 SGD to $2,105 SGD

A
Cheapest Retailer
-
$494 SGD
A
Retailer 2
-
$534 SGD
View
A
Retailer 3
-
$572 SGD
View
Retailer 4
-
$649 SGD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$672 SGD
View
Retailer 6
-
$717 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$723 SGD
View
Retailer 8
-
$733 SGD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$775 SGD
View
A
Retailer 10
-
$829 SGD
View
A
Retailer 11
-
$839 SGD
View
B+
Retailer 12
-
$907 SGD
View
B+
Retailer 13
-
$932 SGD
View
B
Retailer 14
-
$1,551 SGD
View
Most Expensive
B
NZ Jewellers
5725664b-4f38-49c7-bb37-be002fbda403 · Nov 4
$2,105 SGD
$1,648 USD
View
14 more retailers have this diamond
Prices start from $494 SGDSave up to $1,611 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 Round
$494 SGD