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2.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG818675188

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818675188

Diamond specifications and retailer prices

From HK$2,456 HKD
$313 USD
As of October 29, 2026
Save HK$9,810 HKD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$12,266 HKD at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818675188 or 818675188. Listed at 16 retailers as of October 29, 2026, with prices from HK$2,456 to HK$12,266, a HK$9,810 spread on the same certified stone. MOH London lists it at HK$12,266. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818675188
Dimensions8.81 × 8.74 × 5.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.81 mm8.74 mm2.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818675188
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.2%

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: Oct 29
Current: HK$12,266 HKD|Low: HK$2,354 HKD|High: HK$12,345 HKD|Avg: HK$5,089 HKD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6HK$2,456 HKD
Retailer 10HK$2,746 HKD
Retailer 7HK$3,044 HKD
Retailer 9HK$3,044 HKD
Retailer 3HK$4,418 HKD
Retailer 8HK$4,951 HKD
Retailer 4HK$4,982 HKD
Retailer 2HK$5,408 HKD
Retailer 5HK$8,928 HKD
MOH LondonHK$12,266 HKD

42 data points across 10 retailers

16 retailersHK$2,456 HKD to HK$12,266 HKD

Retailer 1
-
HK$2,456 HKD
$313 USD
Price last confirmed 36 days ago
A
Retailer 2
-
HK$2,456 HKD
$313 USD
View
A
Retailer 3
-
HK$2,746 HKD
$350 USD
View
Final sale: no returns
Retailer 4
-
HK$2,848 HKD
$363 USD
View
Price last confirmed 38 days ago
Retailer 5
-
HK$3,005 HKD
$383 USD
View
Price last confirmed 35 days ago
A
Retailer 6
-
HK$3,044 HKD
$388 USD
View
A
Retailer 7
-
HK$3,044 HKD
$388 USD
View
A
Retailer 8
-
HK$4,418 HKD
£443 GBP
View
B+
Retailer 9
-
HK$4,951 HKD
$631 USD
View
A
Retailer 10
-
HK$4,982 HKD
$635 USD
View
A
Retailer 11
-
HK$5,408 HKD
£543 GBP
View
B+
Retailer 12
-
HK$7,869 HKD
$1,003 USD
View
B+
Retailer 13
-
HK$8,928 HKD
$1,138 USD
View
B+
Retailer 14
-
HK$9,784 HKD
$1,247 USD
View
B+
Retailer 15
-
HK$10,146 HKD
$1,293 USD
View
Most Expensive
B
MOH London
LG818675188 · Oct 29
HK$12,266 HKD
£1,231 GBP
View
15 more retailers have this diamond
Prices start from HK$2,456 HKDSave up to HK$9,810 HKD

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
HK$2,456 HKD