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Round|Lab Grown|IGI

2.55ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG485161729

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485161729

Diamond specifications and retailer prices

From $2,222 USD
As of November 5, 2026
Save $4,752 USD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,974 USD at MOH London · As of November 5, 2026
View at MOH London

About this 2.55ct lab-grown round diamond

This 2.55ct lab-grown 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 IGI LG485161729 or 485161729. Listed at 9 retailers as of November 5, 2026, with prices from $2,222 to $6,974, a $4,752 spread on the same certified stone. MOH London lists it at $6,974. 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
Crown angle31.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485161729
Dimensions8.90 × 8.96 × 5.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.90 mm8.96 mm2.55 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485161729
Side View
Table 59.5%Crown 31.4°GirdlePavilion 40.4°Culet: NoneDepth 58.8%

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 5
Current: $6,974 USD|Low: $2,222 USD|High: $7,085 USD|Avg: $3,970 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4$2,222 USD
Retailer 5$2,577 USD
Retailer 2$2,740 USD
Retailer 7$3,289 USD
Retailer 6$4,024 USD
Retailer 3$4,039 USD
MOH London$6,974 USD

19 data points across 7 retailers

9 retailers$2,222 USD to $6,974 USD

A
Cheapest Retailer
-
$2,222 USD
A
Retailer 2
-
$2,417 USD
View
Retailer 3
-
$2,577 USD
View
Price last confirmed 26 days ago
B+
Retailer 4
-
$2,577 USD
View
B+
Retailer 5
-
$2,740 USD
View
B
Retailer 6
-
$3,542 USD
View
B
Retailer 7
-
$4,024 USD
View
B
Retailer 8
-
$4,039 USD
View
Most Expensive
B
MOH London
LG485161729 · Nov 5
$6,974 USD
£5,491 GBP
View
8 more retailers have this diamond
Prices start from $2,222 USDSave up to $4,752 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
$2,222 USD