CaratHunter
Plans
Round|Natural|GIA

0.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6561006555

Certificate GIA 6561006555

Diamond specifications and retailer prices

From $457 USD
₹43,558 INR
As of October 30, 2026
Save $1,453 USD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,910 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 6561006555. Listed at 17 retailers as of October 30, 2026, with prices from $457 to $1,910, a $1,453 spread on the same certified stone. NZ Jewellers lists it at $1,910. 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 angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6561006555
Dimensions5.23 × 5.25 × 3.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Knot
Top View
5.23 mm5.25 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561006555
Side View
Table 60.0%Crown 31.5°Girdle: THN-MEDPavilion 41.8°Culet: NoneDepth 59.9%

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 30
Current: $1,910 USD|Low: $456 USD|High: $1,910 USD|Avg: $770 USD
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
October 30, 2026
Retailer 2$457 USD
Retailer 8$580 USD
Retailer 7$583 USD
Retailer 15$609 USD
Retailer 4$641 USD
Retailer 5$656 USD
Retailer 16$656 USD
Retailer 13$703 USD
Retailer 9$725 USD
Retailer 3$741 USD
Retailer 10$745 USD
Retailer 14$771 USD
Retailer 6$853 USD
Retailer 12$899 USD
Retailer 11$1,414 USD
NZ Jewellers$1,910 USD

26 data points across 16 retailers

17 retailers$457 USD to $1,910 USD

A
Cheapest Retailer
-
$457 USD
₹43,558 INR
A
Retailer 2
-
$525 USD
HK$4,100 HKD
View
Retailer 3
-
$580 USD
View
Price last confirmed 23 days ago
A
Retailer 4
-
$583 USD
View
Final sale: no returns
A
Retailer 5
-
$609 USD
View
A
Retailer 6
-
$641 USD
SGD 866 SGD
View
A
Retailer 7
-
$656 USD
View
A
Retailer 8
-
$656 USD
View
A
Retailer 9
-
$703 USD
View
A
Retailer 10
-
$725 USD
£571 GBP
View
A
Retailer 11
-
$741 USD
View
B+
Retailer 12
-
$745 USD
£586 GBP
View
A
Retailer 13
-
$771 USD
View
B+
Retailer 14
-
$853 USD
View
B+
Retailer 15
-
$899 USD
€856 EUR
View
B
Retailer 16
-
$1,414 USD
£1,113 GBP
View
Most Expensive
B
NZ Jewellers
ac9eb9ba-5bb5-446c-8587-a0778a723d00 · Oct 30
$1,910 USD
View
16 more retailers have this diamond
Prices start from $457 USDSave up to $1,453 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
$457 USD