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Radiant|Natural|GIA

2.51ct H SI2 Radiant Natural Diamond

FR • H/SI2 • GIA 2536421006

Certificate GIA 2536421006

Diamond specifications and retailer prices

From $11,137 AUD
$7,823 USD
As of October 31, 2026
Save $8,015 AUD (42%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $19,152 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536421006. Listed at 5 retailers as of October 26, 2026, with prices from $11,137 to $19,152, a $8,015 spread on the same certified stone. MOH London lists it at $19,152. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
H
Colour
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2536421006
Dimensions7.24 × 7.23 × 5.09 mm
L/W Ratio1.00
Top View
7.24 mm7.23 mm2.51 ctH / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2536421006
Side View
Table 69.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 70.4%

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 31
Current: $19,152 AUD|Low: $9,280 AUD|High: $19,929 AUD|Avg: $12,683 AUD|+17.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8$10,159 AUD
Retailer 5$11,137 AUD
Retailer 9$11,383 AUD
Retailer 2$11,632 AUD
Retailer 7$11,873 AUD
Retailer 6$13,171 AUD
Retailer 4$13,282 AUD
Retailer 3$13,719 AUD
MOH London$19,152 AUD

29 data points across 9 retailers

5 retailers$11,137 AUD to $19,152 AUD

B+
Cheapest Retailer
-
$11,137 AUD
$7,823 USD
Final sale: no returns
A
Retailer 2
-
$11,632 AUD
SGD 11,042 SGD
View
B+
Retailer 3
-
$13,282 AUD
$9,330 USD
View
B+
Retailer 4
-
$13,719 AUD
$9,637 USD
View
Most Expensive
B+
MOH London
9C4F26C4A · Oct 26
$19,152 AUD
£10,593 GBP
View
4 more retailers have this diamond
Prices start from $11,137 AUDSave up to $8,015 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 Radiant
$11,137 AUD