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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

VG • H/SI2 • GIA 6541751280

Certificate GIA 6541751280

Diamond specifications and retailer prices

From $23,857 AUD
$16,758 USD
As of October 29, 2026
Save $17,014 AUD (42%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $40,871 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 very-good cut grade and certified by GIA 6541751280. Listed at 23 retailers as of October 29, 2026, with prices from $23,857 to $40,871, a $17,014 spread on the same certified stone. MOH London lists it at $40,871. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6541751280
Dimensions8.50 × 8.39 × 5.43 mm
L/W Ratio1.01
Top View
8.50 mm8.39 mm2.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541751280
Side View
Table 56.0%Crown 38°Girdle: ThickPavilion 40°Culet: NoneDepth 64.3%

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: $40,871 AUD|Low: $23,857 AUD|High: $42,341 AUD|Avg: $29,059 AUD|-3.2%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 7$23,857 AUD
Retailer 3$23,931 AUD
Retailer 8$24,449 AUD
Retailer 2$24,810 AUD
Retailer 6$24,946 AUD
Retailer 17$25,075 AUD
Retailer 11$26,031 AUD
Retailer 9$26,572 AUD
Retailer 13$26,891 AUD
Retailer 4$27,332 AUD
Retailer 5$27,809 AUD
Retailer 21$28,200 AUD
Retailer 10$28,657 AUD
Retailer 19$28,657 AUD
Retailer 18$29,283 AUD
Retailer 20$29,611 AUD
Retailer 16$30,123 AUD
Retailer 14$31,261 AUD
Retailer 15$31,398 AUD
Retailer 12$36,876 AUD
MOH London$40,871 AUD

32 data points across 21 retailers

23 retailers$23,857 AUD to $40,871 AUD

A
Cheapest Retailer
-
$23,857 AUD
$16,758 USD
A
Retailer 2
-
$23,931 AUD
$16,810 USD
View
A
Retailer 3
-
$24,449 AUD
$17,174 USD
View
A
Retailer 4
-
$24,810 AUD
₹1,659,808 INR
View
A
Retailer 5
-
$24,946 AUD
$17,523 USD
View
Final sale: no returns
A
Retailer 6
-
$25,075 AUD
$17,614 USD
View
B+
Retailer 7
-
$26,031 AUD
$18,285 USD
View
B+
Retailer 8
-
$26,572 AUD
$18,666 USD
View
B+
Retailer 9
-
$26,891 AUD
£14,874 GBP
View
B+
Retailer 10
-
$27,332 AUD
$19,199 USD
View
B+
Retailer 11
-
$27,809 AUD
$19,534 USD
View
B+
Retailer 12
-
$28,200 AUD
$19,809 USD
View
B+
Retailer 13
-
$28,657 AUD
$20,130 USD
View
B+
Retailer 14
-
$28,657 AUD
$20,130 USD
View
B+
Retailer 15
-
$29,283 AUD
$20,570 USD
View
B+
Retailer 16
-
$29,611 AUD
$20,800 USD
View
B+
Retailer 17
-
$30,123 AUD
£16,661 GBP
View
Retailer 18
-
$30,136 AUD
$21,169 USD
View
Price last confirmed 71 days ago
Retailer 19
-
$30,368 AUD
$21,332 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
$31,261 AUD
$21,959 USD
View
B+
Retailer 21
-
$31,398 AUD
€21,005 EUR
View
B
Retailer 22
-
$36,876 AUD
$25,903 USD
View
Most Expensive
B
MOH London
319BB0A7E · Oct 29
$40,871 AUD
£22,606 GBP
View
22 more retailers have this diamond
Prices start from $23,857 AUDSave up to $17,014 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
$23,857 AUD