Round|Natural|GIA

0.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 2434227964

Certificate GIA 2434227964

Diamond specifications and retailer prices

From $498 USD
₹47,396 INR
As of October 31, 2026
Save $1,604 USD (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,102 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 2434227964. Listed at 22 retailers as of October 30, 2026, with prices from $498 to $2,102, a $1,604 spread on the same certified stone. NZ Jewellers lists it at $2,102. 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
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2434227964
Dimensions5.17 × 5.10 × 3.14 mm
L/W Ratio1.01
Top View
5.17 mm5.10 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2434227964
Side View
Table 59.0%Crown 32°Girdle: STK-STKPavilion 41.6°Culet: NoneDepth 61.0%

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: $498 USD|Low: $425 USD|High: $1,567 USD|Avg: $829 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 1$498 USD
Retailer 7$618 USD
Retailer 5$670 USD
Retailer 8$771 USD
Retailer 6$800 USD
Retailer 2$816 USD
Retailer 3$900 USD
Retailer 4$1,557 USD

40 data points across 8 retailers

22 retailers$498 USD to $2,102 USD

A
Cheapest Retailer
-
$498 USD
₹47,396 INR
A
Retailer 2
-
$618 USD
View
Final sale: no returns
A
Retailer 3
-
$634 USD
View
A
Retailer 4
-
$639 USD
A$984 AUD
View
Retailer 5
-
$670 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
$670 USD
View
Retailer 7
-
$670 USD
View
Price last confirmed 13 days ago
Retailer 8
-
$670 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$696 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$771 USD
View
Retailer 11
-
$774 USD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$774 USD
View
B+
Retailer 13
-
$800 USD
£630 GBP
View
B+
Retailer 14
-
$803 USD
View
Retailer 15
-
$816 USD
View
Price last confirmed 52 days ago
B+
Retailer 16
-
$816 USD
£642 GBP
View
B+
Retailer 17
-
$900 USD
€857 EUR
View
B
Retailer 18
-
$1,557 USD
£1,226 GBP
View
B
Retailer 19
-
$1,727 USD
£1,360 GBP
View
Retailer 20
-
$2,102 USD
View
Price last confirmed 37 days ago
Retailer 21
-
$2,102 USD
View
Price last confirmed 14 days ago
Most Expensive
B
NZ Jewellers
62d3ab6d-d18d-4318-8764-b2d563bf4ca8 · Oct 30
$2,102 USD
View
21 more retailers have this diamond
Prices start from $498 USDSave up to $1,604 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
$498 USD