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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 $16,758 USD
As of October 29, 2026
Save $11,952 USD (42%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $28,710 USD 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 $16,758 to $28,710, a $11,952 spread on the same certified stone. MOH London lists it at $28,710. 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
Color
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: $28,710 USD|Low: $16,758 USD|High: $29,742 USD|Avg: $20,442 USD|-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 30, 2026
Retailer 7$16,758 USD
Retailer 3$16,810 USD
Retailer 8$17,174 USD
Retailer 2$17,489 USD
Retailer 6$17,523 USD
Retailer 17$17,614 USD
Retailer 11$18,285 USD
Retailer 9$18,666 USD
Retailer 13$18,890 USD
Retailer 4$19,199 USD
Retailer 5$19,534 USD
Retailer 21$19,809 USD
Retailer 10$20,130 USD
Retailer 19$20,130 USD
Retailer 18$20,570 USD
Retailer 20$20,800 USD
Retailer 16$21,160 USD
Retailer 14$21,959 USD
Retailer 15$22,055 USD
Retailer 12$25,903 USD
MOH London$28,710 USD

31 data points across 21 retailers

23 retailers$16,758 USD to $28,710 USD

A
Cheapest Retailer
-
$16,758 USD
A
Retailer 2
-
$16,810 USD
View
A
Retailer 3
-
$17,174 USD
View
A
Retailer 4
-
$17,489 USD
₹1,665,588 INR
View
A
Retailer 5
-
$17,523 USD
View
Final sale: no returns
A
Retailer 6
-
$17,614 USD
View
B+
Retailer 7
-
$18,285 USD
View
B+
Retailer 8
-
$18,666 USD
View
B+
Retailer 9
-
$18,890 USD
£14,874 GBP
View
B+
Retailer 10
-
$19,199 USD
View
B+
Retailer 11
-
$19,534 USD
View
B+
Retailer 12
-
$19,809 USD
View
B+
Retailer 13
-
$20,130 USD
View
B+
Retailer 14
-
$20,130 USD
View
B+
Retailer 15
-
$20,570 USD
View
B+
Retailer 16
-
$20,800 USD
View
B+
Retailer 17
-
$21,160 USD
£16,661 GBP
View
Retailer 18
-
$21,169 USD
View
Price last confirmed 69 days ago
Retailer 19
-
$21,332 USD
View
Price last confirmed 7 days ago
B+
Retailer 20
-
$21,959 USD
View
B+
Retailer 21
-
$22,055 USD
€21,005 EUR
View
B
Retailer 22
-
$25,903 USD
View
Most Expensive
B
MOH London
319BB0A7E · Oct 29
$28,710 USD
£22,606 GBP
View
22 more retailers have this diamond
Prices start from $16,758 USDSave up to $11,952 USD

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
$16,758 USD