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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1533625669

Certificate GIA 1533625669

Diamond specifications and retailer prices

From $30,055 AUD
$21,112 USD
As of October 30, 2026
Save $20,772 AUD (41%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $50,828 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533625669. Listed at 9 retailers as of October 29, 2026, with prices from $30,055 to $50,828, a $20,772 spread on the same certified stone. MOH London lists it at $50,828. 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

2.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
OriginNatural
Grading LabGIA
CertificateGIA 1533625669
Dimensions8.66 × 8.71 × 5.39 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.66 mm8.71 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1533625669
Side View
Table 57.0%Crown 35°Girdle: MediumPavilionCulet: 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 30
Current: $50,828 AUD|Low: $32,371 AUD|High: $51,166 AUD|Avg: $38,342 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8$32,371 AUD
Retailer 2$32,966 AUD
Retailer 4$33,990 AUD
Retailer 6$35,069 AUD
Retailer 7$36,419 AUD
Retailer 3$38,392 AUD
Retailer 5$45,860 AUD
MOH London$50,828 AUD

42 data points across 8 retailers

9 retailers$30,055 AUD to $50,828 AUD

A
Cheapest Retailer
-
$30,055 AUD
$21,112 USD
A
Retailer 2
-
$30,750 AUD
CA$30,001 CAD
View
A
Retailer 3
-
$32,966 AUD
£18,234 GBP
View
B+
Retailer 4
-
$33,990 AUD
$23,876 USD
View
B+
Retailer 5
-
$35,069 AUD
$24,634 USD
View
B+
Retailer 6
-
$36,419 AUD
$25,582 USD
View
B+
Retailer 7
-
$38,392 AUD
€25,684 EUR
View
B
Retailer 8
-
$45,860 AUD
$32,214 USD
View
Most Expensive
B
MOH London
2905A8E5C · Oct 29
$50,828 AUD
£28,113 GBP
View
8 more retailers have this diamond
Prices start from $30,055 AUDSave up to $20,772 AUD

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
2.51ct Round
$30,055 AUD