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2.55ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 782657428

Shape and cutting style on the report: Round brilliant

Certificate IGI 782657428

Diamond specifications and retailer prices

From $12,181 USD
₹1,160,109 INR
As of October 31, 2026
Save $9,673 USD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $21,854 USD at MOH London · As of October 29, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 782657428. Listed at 12 retailers as of October 29, 2026, with prices from $12,181 to $21,854, a $9,673 spread on the same certified stone. MOH London lists it at $21,854. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 782657428
Dimensions8.71 × 8.77 × 5.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.71 mm8.77 mm2.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 782657428
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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: $21,854 USD|Low: $12,150 USD|High: $22,000 USD|Avg: $16,672 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2$12,181 USD
Retailer 7$14,723 USD
Retailer 3$15,060 USD
Retailer 5$15,620 USD
Retailer 8$16,388 USD
Retailer 4$16,842 USD
Retailer 6$19,144 USD
MOH London$21,854 USD

40 data points across 8 retailers

12 retailers$12,181 USD to $21,854 USD

A
Cheapest Retailer
-
$12,181 USD
₹1,160,109 INR
A
Retailer 2
-
$14,723 USD
View
Final sale: no returns
A
Retailer 3
-
$15,060 USD
View
A
Retailer 4
-
$15,620 USD
£12,299 GBP
View
A
Retailer 5
-
$16,388 USD
View
A
Retailer 6
-
$16,644 USD
View
A
Retailer 7
-
$16,842 USD
€16,040 EUR
View
A
Retailer 8
-
$17,066 USD
View
A
Retailer 9
-
$17,285 USD
View
B+
Retailer 10
-
$19,144 USD
ZAR 309,274 ZAR
View
B+
Retailer 11
-
$19,719 USD
View
Most Expensive
B+
MOH London
9DF1C1694 · Oct 29
$21,854 USD
£17,208 GBP
View
11 more retailers have this diamond
Prices start from $12,181 USDSave up to $9,673 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
$12,181 USD