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Cushion|Lab Grown|IGI

0.81ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG468186864

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG468186864

Diamond specifications and retailer prices

From HK$1,859 HKD
$237 USD
As of October 30, 2026
Save HK$8,384 HKD (82%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$10,243 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 0.81ct lab-grown cushion diamond

This 0.81ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG468186864 or 468186864. Listed at 4 retailers as of October 26, 2026, with prices from HK$1,859 to HK$10,243, a HK$8,384 spread on the same certified stone. MOH London lists it at HK$10,243. 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

0.81
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG468186864
Dimensions5.45 × 5.43 × 3.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
5.45 mm5.43 mm0.81 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG468186864
Side View
Table 59.0%Crown 35.6°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 68.0%

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 30
Current: HK$10,243 HKD|Low: HK$1,663 HKD|High: HK$10,353 HKD|Avg: HK$5,502 HKD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 4HK$1,859 HKD
Retailer 2HK$2,038 HKD
Retailer 3HK$2,346 HKD
Retailer 5HK$5,963 HKD
Retailer 6HK$8,081 HKD
Retailer 7HK$8,081 HKD
MOH LondonHK$10,243 HKD

37 data points across 7 retailers

4 retailersHK$1,859 HKD to HK$10,243 HKD

A
Cheapest Retailer
-
HK$1,859 HKD
$237 USD
A
Retailer 2
-
HK$2,038 HKD
£205 GBP
View
A
Retailer 3
-
HK$2,346 HKD
$299 USD
View
Most Expensive
B
MOH London
LG468186864 · Oct 26
HK$10,243 HKD
£1,028 GBP
View
3 more retailers have this diamond
Prices start from HK$1,859 HKDSave up to HK$8,384 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
0.81ct Cushion
HK$1,859 HKD