CaratHunter
Plans
Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6342828860

Shape and cutting style on the report: Round brilliant

Certificate GIA 6342828860

Diamond specifications and retailer prices

From $971 SGD
As of November 4, 2026
Save $1,018 SGD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,410 SGD at NZ Jewellers · As of October 30, 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 6342828860. Listed at 13 retailers as of November 4, 2026, with a 105% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6342828860
Dimensions5.18 × 5.16 × 3.15 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.18 mm5.16 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6342828860
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.8%

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 4
Current: $3,410 SGD|Low: $837 SGD|High: $3,410 SGD|Avg: $1,508 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$1,004 SGD
Retailer 4$1,047 SGD
Retailer 9$1,087 SGD
Retailer 7$1,129 SGD
Retailer 10$1,190 SGD
Retailer 8$1,254 SGD
Retailer 2$1,290 SGD
Retailer 3$1,521 SGD
Retailer 5$1,989 SGD
NZ Jewellers$3,410 SGD

42 data points across 10 retailers

13 retailers$971 SGD to $1,989 SGD

B+
Cheapest Retailer
-
$971 SGD
B+
Retailer 2
-
$1,004 SGD
View
Final sale: no returns
B+
Retailer 3
-
$1,047 SGD
View
Retailer 4
-
$1,087 SGD
View
Price last confirmed 53 days ago
Retailer 5
-
$1,087 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,101 SGD
View
B+
Retailer 7
-
$1,129 SGD
View
Retailer 8
-
$1,254 SGD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$1,257 SGD
View
B
Retailer 10
-
$1,290 SGD
View
B
Retailer 11
-
$1,521 SGD
View
B
Retailer 12
-
$1,989 SGD
View
Most Expensive
NZ Jewellers
b884ea88-7e54-40de-8759-5eb9071228ad · Oct 30
$3,410 SGD
$2,670 USD
View
Price under review
12 more retailers have this diamond
Prices start from $971 SGDSave up to $1,018 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.

B+
0.51ct Round
$971 SGD