Round|Natural|GIA

0.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6391932684

Certificate GIA 6391932684

Diamond specifications and retailer prices

From $444 USD
₹42,267 INR
As of October 31, 2026
Save $1,499 USD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,943 USD 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6391932684. Listed at 18 retailers as of October 30, 2026, with prices from $444 to $1,943, a $1,499 spread on the same certified stone. NZ Jewellers lists it at $1,943. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6391932684
Dimensions5.16 × 5.12 × 3.10 mm
L/W Ratio1.01
Top View
5.16 mm5.12 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6391932684
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.3%

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: Oct 31
Current: $768 USD|Low: $378 USD|High: $1,448 USD|Avg: $760 USD|+6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 2$444 USD
Retailer 6$571 USD
Retailer 7$667 USD
Retailer 3$752 USD
Retailer 1$768 USD
Retailer 4$806 USD
Retailer 5$1,439 USD

39 data points across 7 retailers

18 retailers$444 USD to $1,943 USD

A
Cheapest Retailer
-
$444 USD
₹42,267 INR
A
Retailer 2
-
$512 USD
HK$4,000 HKD
View
A
Retailer 3
-
$571 USD
View
Final sale: no returns
A
Retailer 4
-
$586 USD
View
A
Retailer 5
-
$620 USD
View
A
Retailer 6
-
$634 USD
SGD 857 SGD
View
Retailer 7
-
$635 USD
View
Price last confirmed 24 days ago
A
Retailer 8
-
$667 USD
View
A
Retailer 9
-
$667 USD
View
A
Retailer 10
-
$715 USD
View
B+
Retailer 11
-
$751 USD
View
B+
Retailer 12
-
$752 USD
£592 GBP
View
A
Retailer 13
-
$768 USD
View
B+
Retailer 14
-
$806 USD
€768 EUR
View
B
Retailer 15
-
$1,024 USD
View
B
Retailer 16
-
$1,439 USD
£1,133 GBP
View
B
Retailer 17
-
$1,463 USD
£1,152 GBP
View
Most Expensive
B
NZ Jewellers
863a9728-ec32-42a2-85dd-32d29fdbd8ef · Oct 30
$1,943 USD
View
17 more retailers have this diamond
Prices start from $444 USDSave up to $1,499 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 Round
$444 USD