Round|Natural|GIA

0.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 3545584511

Certificate GIA 3545584511

Diamond specifications and retailer prices

From $623 USD
As of October 31, 2026
Save $1,716 USD (73%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $2,339 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 3545584511. Listed at 27 retailers as of October 30, 2026, with prices from $623 to $2,339, a $1,716 spread on the same certified stone. NZ Jewellers lists it at $2,339. 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 angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3545584511
Dimensions5.16 × 5.14 × 3.14 mm
L/W Ratio1.00
Top View
5.16 mm5.14 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545584511
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.9%

Caratlytics Score

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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: $891 USD|Low: $571 USD|High: $1,949 USD|Avg: $1,040 USD|+5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8$623 USD
Retailer 4$676 USD
Retailer 7$828 USD
Retailer 1$891 USD
Retailer 5$933 USD
Retailer 2$1,058 USD
Retailer 3$1,374 USD
Retailer 6$1,943 USD

42 data points across 8 retailers

27 retailers$623 USD to $2,339 USD

A
Cheapest Retailer
-
$623 USD
Final sale: no returns
A
Retailer 2
-
$663 USD
View
Retailer 3
-
$676 USD
View
Price last confirmed 54 days ago
A
Retailer 4
-
$676 USD
View
Retailer 5
-
$676 USD
View
Price last confirmed 44 days ago
Retailer 6
-
$676 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$676 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$676 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$702 USD
View
Price last confirmed 32 days ago
Retailer 10
-
$780 USD
View
Price last confirmed 39 days ago
Retailer 11
-
$780 USD
View
Price last confirmed 22 days ago
Retailer 12
-
$780 USD
View
Price last confirmed 54 days ago
Retailer 13
-
$780 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$780 USD
View
B+
Retailer 15
-
$784 USD
View
B+
Retailer 16
-
$820 USD
View
B+
Retailer 17
-
$820 USD
View
B+
Retailer 18
-
$828 USD
View
B+
Retailer 19
-
$850 USD
View
B+
Retailer 20
-
$891 USD
£701 GBP
View
B+
Retailer 21
-
$933 USD
£735 GBP
View
B+
Retailer 22
-
$1,058 USD
€1,008 EUR
View
B
Retailer 23
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$1,374 USD
£1,082 GBP
View
B
Retailer 24
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$1,943 USD
£1,530 GBP
View
Retailer 25
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$2,339 USD
View
Price last confirmed 41 days ago
Retailer 26
-
$2,339 USD
View
Price last confirmed 36 days ago
Most Expensive
B
NZ Jewellers
b5fab7ff-644c-471b-a58e-db5ffb68893f · Oct 30
$2,339 USD
View
26 more retailers have this diamond
Prices start from $623 USDSave up to $1,716 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
$623 USD