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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6532898193

Certificate GIA 6532898193

Diamond specifications and retailer prices

From $24,611 AUD
$17,288 USD
As of October 29, 2026
Save $11,617 AUD (32%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $36,228 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6532898193. Listed at 10 retailers as of October 29, 2026, with prices from $24,611 to $36,228, a $11,617 spread on the same certified stone. MOH London lists it at $36,228. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6532898193
Dimensions8.66 × 8.61 × 5.41 mm
L/W Ratio1.01
Top View
8.66 mm8.61 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532898193
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 29
Current: $36,228 AUD|Low: $24,610 AUD|High: $37,597 AUD|Avg: $28,640 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9$24,611 AUD
Retailer 10$24,997 AUD
Retailer 2$26,334 AUD
Retailer 4$26,799 AUD
Retailer 5$27,661 AUD
Retailer 7$28,273 AUD
Retailer 3$29,607 AUD
Retailer 8$30,504 AUD
Retailer 6$34,707 AUD
MOH London$36,228 AUD

40 data points across 10 retailers

10 retailers$24,611 AUD to $36,228 AUD

A
Cheapest Retailer
-
$24,611 AUD
$17,288 USD
A
Retailer 2
-
$24,997 AUD
$17,559 USD
View
A
Retailer 3
-
$26,334 AUD
SGD 24,998 SGD
View
A
Retailer 4
-
$26,799 AUD
$18,825 USD
View
B+
Retailer 5
-
$27,661 AUD
$19,430 USD
View
B+
Retailer 6
-
$28,273 AUD
£15,638 GBP
View
B+
Retailer 7
-
$29,607 AUD
$20,797 USD
View
B+
Retailer 8
-
$30,504 AUD
€20,407 EUR
View
B
Retailer 9
-
$34,707 AUD
$24,380 USD
View
Most Expensive
B
MOH London
6E98FCC83 · Oct 29
$36,228 AUD
£20,038 GBP
View
9 more retailers have this diamond
Prices start from $24,611 AUDSave up to $11,617 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
$24,611 AUD