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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1555877286

Certificate GIA 1555877286

Diamond specifications and retailer prices

From $25,980 AUD
₹1,738,077 INR
As of November 1, 2026
Save $20,647 AUD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $46,628 AUD at MOH London · As of November 1, 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 1555877286. Listed at 16 retailers as of November 1, 2026, with prices from $25,980 to $46,628, a $20,647 spread on the same certified stone. MOH London lists it at $46,628. 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
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555877286
Dimensions8.65 × 8.60 × 5.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
8.65 mm8.60 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555877286
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: Nov 1
Current: $46,628 AUD|Low: $25,980 AUD|High: $48,407 AUD|Avg: $34,825 AUD|-3.7%
MOH London
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
November 2, 2026
Retailer 12$25,980 AUD
Retailer 9$28,832 AUD
Retailer 10$30,072 AUD
Retailer 16$30,296 AUD
Retailer 4$30,458 AUD
Retailer 14$32,672 AUD
Retailer 6$32,955 AUD
Retailer 2$34,115 AUD
Retailer 11$34,538 AUD
Retailer 7$34,602 AUD
Retailer 8$34,602 AUD
Retailer 15$35,458 AUD
Retailer 13$36,405 AUD
Retailer 3$37,073 AUD
Retailer 5$42,295 AUD
MOH London$46,628 AUD

20 data points across 16 retailers

16 retailers$25,980 AUD to $46,628 AUD

A
Cheapest Retailer
-
$25,980 AUD
₹1,738,077 INR
A
Retailer 2
-
$28,832 AUD
$20,253 USD
View
Final sale: no returns
A
Retailer 3
-
$30,072 AUD
£16,633 GBP
View
A
Retailer 4
-
$30,296 AUD
$21,281 USD
View
A
Retailer 5
-
$30,458 AUD
$21,395 USD
View
A
Retailer 6
-
$32,672 AUD
$22,950 USD
View
B+
Retailer 7
-
$32,955 AUD
$23,149 USD
View
B+
Retailer 8
-
$34,115 AUD
£18,869 GBP
View
B+
Retailer 9
-
$34,538 AUD
€23,106 EUR
View
B+
Retailer 10
-
$34,602 AUD
$24,306 USD
View
B+
Retailer 11
-
$34,602 AUD
$24,306 USD
View
B+
Retailer 12
-
$35,458 AUD
$24,907 USD
View
B+
Retailer 13
-
$36,405 AUD
$25,572 USD
View
B+
Retailer 14
-
$37,073 AUD
$26,042 USD
View
B+
Retailer 15
-
$42,295 AUD
$29,710 USD
View
Most Expensive
B+
MOH London
479FC1984 · Nov 1
$46,628 AUD
£25,790 GBP
View
15 more retailers have this diamond
Prices start from $25,980 AUDSave up to $20,647 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
$25,980 AUD