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Cushion|Lab Grown|IGI

0.71ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG508145129

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG508145129

Diamond specifications and retailer prices

From HK$2,173 HKD
$277 USD
As of November 1, 2026
Save HK$7,123 HKD (77%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$9,296 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.71ct lab-grown cushion diamond

This 0.71ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508145129 or 508145129. Listed at 4 retailers as of October 29, 2026, with prices from HK$2,173 to HK$9,296, a HK$7,123 spread on the same certified stone. MOH London lists it at HK$9,296. 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

0.71
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508145129
Dimensions5.34 × 5.18 × 3.53 mm
L/W Ratio1.03
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
5.34 mm5.18 mm0.71 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508145129
Side View
Table 59.5%Crown 35.7°Girdle: STK-VTKPavilion 41.1°Culet: NoneDepth 68.1%

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: HK$9,296 HKD|Low: HK$1,977 HKD|High: HK$9,356 HKD|Avg: HK$4,194 HKD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3HK$2,173 HKD
Retailer 2HK$2,243 HKD
Retailer 4HK$2,966 HKD
Retailer 7HK$3,687 HKD
Retailer 5HK$4,786 HKD
Retailer 6HK$4,786 HKD
MOH LondonHK$9,296 HKD

36 data points across 7 retailers

4 retailersHK$2,173 HKD to HK$9,296 HKD

A
Cheapest Retailer
-
HK$2,173 HKD
$277 USD
A
Retailer 2
-
HK$2,243 HKD
£225 GBP
View
B+
Retailer 3
-
HK$2,966 HKD
$378 USD
View
Most Expensive
B
MOH London
LG508145129 · Oct 29
HK$9,296 HKD
£933 GBP
View
3 more retailers have this diamond
Prices start from HK$2,173 HKDSave up to HK$7,123 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
0.71ct Cushion
HK$2,173 HKD