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Round|Natural|GIA

0.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1399547329

Certificate GIA 1399547329

Diamond specifications and retailer prices

From $497 USD
₹47,301 INR
As of October 31, 2026
Save $1,664 USD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,161 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 1399547329. Listed at 20 retailers as of October 30, 2026, with prices from $497 to $2,161, a $1,664 spread on the same certified stone. NZ Jewellers lists it at $2,161. 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
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1399547329
Dimensions5.13 × 5.10 × 3.17 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather
Top View
5.13 mm5.10 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1399547329
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.0%

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: $497 USD|Low: $495 USD|High: $1,610 USD|Avg: $849 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 1$497 USD
Retailer 7$635 USD
Retailer 4$638 USD
Retailer 8$780 USD
Retailer 5$821 USD
Retailer 2$846 USD
Retailer 3$897 USD
Retailer 6$1,600 USD

27 data points across 8 retailers

20 retailers$497 USD to $2,161 USD

A
Cheapest Retailer
-
$497 USD
₹47,301 INR
A
Retailer 2
-
$576 USD
HK$4,500 HKD
View
A
Retailer 3
-
$635 USD
View
Final sale: no returns
A
Retailer 4
-
$638 USD
A$982 AUD
View
A
Retailer 5
-
$652 USD
View
Retailer 6
-
$689 USD
View
Price last confirmed 23 days ago
A
Retailer 7
-
$689 USD
View
Retailer 8
-
$699 USD
View
Price last confirmed 73 days ago
A
Retailer 9
-
$706 USD
SGD 954 SGD
View
A
Retailer 10
-
$715 USD
View
A
Retailer 11
-
$780 USD
View
B+
Retailer 12
-
$795 USD
View
B+
Retailer 13
-
$821 USD
£646 GBP
View
B+
Retailer 14
-
$821 USD
View
B+
Retailer 15
-
$846 USD
£666 GBP
View
B+
Retailer 16
-
$897 USD
€854 EUR
View
B
Retailer 17
-
$1,024 USD
View
B
Retailer 18
-
$1,531 USD
£1,205 GBP
View
B
Retailer 19
-
$1,600 USD
£1,260 GBP
View
Most Expensive
B
NZ Jewellers
b3b819bf-d7d2-48a7-b883-b263698d833f · Oct 30
$2,161 USD
View
19 more retailers have this diamond
Prices start from $497 USDSave up to $1,664 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
$497 USD