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Cushion|Lab Grown|IGI

0.67ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG805671991

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

Certificate IGI LG805671991

Diamond specifications and retailer prices

From HK$1,306 HKD
As of November 1, 2026
Save HK$2,068 HKD (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$9,685 HKD at MOH London · As of October 25, 2026
View at MOH London

About this 0.67ct lab-grown cushion diamond

This 0.67ct 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 LG805671991 or 805671991. Listed at 10 retailers as of October 31, 2026, with a 158% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.67
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805671991
Dimensions5.03 × 5.01 × 3.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.03 mm5.01 mm0.67 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG805671991
Side View
Table 65.0%Crown 34.5°Girdle: STK-THKPavilion 37.1°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: Nov 1
Current: HK$9,685 HKD|Low: HK$1,036 HKD|High: HK$9,785 HKD|Avg: HK$3,316 HKD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9HK$1,043 HKD
Retailer 10HK$2,040 HKD
Retailer 2HK$2,043 HKD
Retailer 8HK$2,244 HKD
Retailer 5HK$2,365 HKD
Retailer 3HK$2,777 HKD
Retailer 6HK$2,854 HKD
Retailer 7HK$2,997 HKD
Retailer 4HK$3,374 HKD
MOH LondonHK$9,685 HKD

40 data points across 10 retailers

10 retailersHK$1,306 HKD to HK$3,374 HKD

A
Cheapest Retailer
-
HK$1,306 HKD
A
Retailer 2
-
HK$2,043 HKD
€248 EUR
View
Retailer 3
-
HK$2,244 HKD
$286 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
HK$2,365 HKD
£237 GBP
View
B+
Retailer 5
-
HK$2,777 HKD
$354 USD
View
B+
Retailer 6
-
HK$2,854 HKD
£286 GBP
View
B+
Retailer 7
-
HK$2,997 HKD
$382 USD
View
B+
Retailer 8
-
HK$3,228 HKD
SGD 556 SGD
View
B+
Retailer 9
-
HK$3,374 HKD
$430 USD
View
Most Expensive
MOH London
LG805671991 · Oct 25
HK$9,685 HKD
£972 GBP
View
Price last confirmed 7 days ago
9 more retailers have this diamond
Prices start from HK$1,306 HKDSave up to HK$2,068 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
0.67ct Cushion
HK$1,306 HKD