Round|Natural|GIA

2.55ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2534799398

Certificate GIA 2534799398

Diamond specifications and retailer prices

From $10,720 USD
As of November 1, 2026
Save $7,992 USD (43%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,712 USD at MOH London · As of November 4, 2026
View at MOH London

About this 2.55ct natural round diamond

This 2.55ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2534799398. Listed at 16 retailers as of November 1, 2026, with prices from $10,720 to $18,712, a $7,992 spread on the same certified stone. MOH London lists it at $18,712. 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

2.55
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2534799398
Dimensions8.98 × 8.94 × 5.27 mm
L/W Ratio1.00
Top View
8.98 mm8.94 mm2.55 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2534799398
Side View
Table 59.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 58.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,712 USD|Low: $10,720 USD|High: $18,988 USD|Avg: $14,302 USD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$10,720 USD
Retailer 5$11,050 USD
Retailer 6$12,789 USD
Retailer 2$13,613 USD
Retailer 3$14,428 USD
Retailer 4$16,496 USD
MOH London$18,712 USD

27 data points across 7 retailers

16 retailers$10,720 USD to $18,712 USD

A
Cheapest Retailer
-
$10,720 USD
A
Retailer 2
-
$11,050 USD
View
A
Retailer 3
-
$11,146 USD
View
A
Retailer 4
-
$11,608 USD
View
A
Retailer 5
-
$11,830 USD
View
A
Retailer 6
-
$12,291 USD
View
A
Retailer 7
-
$12,789 USD
View
A
Retailer 8
-
$12,821 USD
View
Retailer 9
-
$13,579 USD
View
Price last confirmed 38 days ago
A
Retailer 10
-
$13,613 USD
View
Retailer 11
-
$13,791 USD
View
Price last confirmed 36 days ago
Retailer 12
-
$14,322 USD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$14,428 USD
View
B+
Retailer 14
-
$16,496 USD
View
Retailer 15
-
$18,035 USD
View
Price last confirmed 39 days ago
Most Expensive
B
MOH London
0B55DEA6F · Nov 4
$18,712 USD
£14,734 GBP
View
15 more retailers have this diamond
Prices start from $10,720 USDSave up to $7,992 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
2.55ct Round
$10,720 USD