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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 7553608628

Certificate GIA 7553608628

Diamond specifications and retailer prices

From $20,927 AUD
$14,700 USD
As of October 31, 2026
Save $16,373 AUD (44%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $37,300 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 7553608628. Listed at 30 retailers as of October 29, 2026, with prices from $20,927 to $37,300, a $16,373 spread on the same certified stone. MOH London lists it at $37,300. 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 angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7553608628
Dimensions8.65 × 8.60 × 5.40 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
8.65 mm8.60 mm2.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553608628
Side View
Table 58.0%Crown 35°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 63.2%

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: $37,300 AUD|Low: $20,927 AUD|High: $37,550 AUD|Avg: $26,482 AUD|-0.4%
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
Retailer 17
November 1, 2026
Retailer 11$20,927 AUD
Retailer 15$21,405 AUD
Retailer 17$21,492 AUD
Retailer 3$21,932 AUD
Retailer 13$22,086 AUD
Retailer 16$22,343 AUD
Retailer 14$22,403 AUD
Retailer 4$22,493 AUD
Retailer 5$23,915 AUD
Retailer 10$24,133 AUD
Retailer 12$25,326 AUD
Retailer 6$26,095 AUD
Retailer 7$26,300 AUD
Retailer 8$26,465 AUD
Retailer 9$27,347 AUD
Retailer 2$28,059 AUD
MOH London$37,300 AUD

29 data points across 17 retailers

30 retailers$20,927 AUD to $37,300 AUD

A
Cheapest Retailer
-
$20,927 AUD
$14,700 USD
A
Retailer 2
-
$21,405 AUD
$15,036 USD
View
A
Retailer 3
-
$21,492 AUD
$15,097 USD
View
A
Retailer 4
-
$21,932 AUD
$15,406 USD
View
A
Retailer 5
-
$22,086 AUD
View
A
Retailer 6
-
$22,343 AUD
₹1,494,730 INR
View
A
Retailer 7
-
$22,403 AUD
$15,737 USD
View
Final sale: no returns
A
Retailer 8
-
$22,493 AUD
$15,800 USD
View
A
Retailer 9
-
$23,757 AUD
$16,688 USD
View
A
Retailer 10
-
$23,915 AUD
$16,799 USD
View
A
Retailer 11
-
$24,133 AUD
£13,348 GBP
View
A
Retailer 12
-
$24,768 AUD
$17,398 USD
View
A
Retailer 13
-
$25,326 AUD
$17,790 USD
View
A
Retailer 14
-
$25,340 AUD
$17,800 USD
View
A
Retailer 15
-
$25,375 AUD
$17,824 USD
View
Retailer 16
-
$25,736 AUD
$18,078 USD
View
Price last confirmed 54 days ago
Retailer 17
-
$25,736 AUD
$18,078 USD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
$26,028 AUD
View
B+
Retailer 19
-
$26,095 AUD
$18,330 USD
View
B+
Retailer 20
-
$26,300 AUD
$18,474 USD
View
B+
Retailer 21
-
$26,465 AUD
$18,590 USD
View
Retailer 22
-
$26,727 AUD
$18,774 USD
View
Price last confirmed 34 days ago
Retailer 23
-
$26,727 AUD
$18,774 USD
View
Price last confirmed 55 days ago
Retailer 24
-
$26,741 AUD
$18,784 USD
View
Price last confirmed 9 days ago
B+
Retailer 25
-
$27,347 AUD
$19,210 USD
View
Retailer 26
-
$27,665 AUD
£15,301 GBP
View
Price last confirmed 32 days ago
B+
Retailer 27
-
$28,059 AUD
€18,771 EUR
View
B+
Retailer 28
-
$28,503 AUD
$20,021 USD
View
Retailer 29
-
$33,655 AUD
$23,641 USD
View
Price last confirmed 35 days ago
Most Expensive
B+
MOH London
FAFCEE711 · Oct 29
$37,300 AUD
£20,631 GBP
View
29 more retailers have this diamond
Prices start from $20,927 AUDSave up to $16,373 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
$20,927 AUD