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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 $213 SGD
HK$1,300 HKD
As of October 30, 2026
Save $1,365 SGD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,578 SGD 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 25, 2026, with prices from $213 to $1,578, a $1,365 spread on the same certified stone. MOH London lists it at $1,578. 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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,578 SGD|Low: $169 SGD|High: $1,594 SGD|Avg: $539 SGD|+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 9$170 SGD
Retailer 10$332 SGD
Retailer 2$333 SGD
Retailer 8$366 SGD
Retailer 5$385 SGD
Retailer 3$453 SGD
Retailer 6$465 SGD
Retailer 7$488 SGD
Retailer 4$550 SGD
MOH London$1,578 SGD

41 data points across 10 retailers

10 retailers$213 SGD to $1,578 SGD

A
Cheapest Retailer
-
$213 SGD
HK$1,300 HKD
A
Retailer 2
-
$333 SGD
€248 EUR
View
A
Retailer 3
-
$366 SGD
$286 USD
View
A
Retailer 4
-
$385 SGD
£237 GBP
View
B+
Retailer 5
-
$453 SGD
$354 USD
View
B+
Retailer 6
-
$465 SGD
£286 GBP
View
B+
Retailer 7
-
$488 SGD
$382 USD
View
B+
Retailer 8
-
$526 SGD
View
B+
Retailer 9
-
$550 SGD
$430 USD
View
Most Expensive
B
MOH London
LG805671991 · Oct 25
$1,578 SGD
£972 GBP
View
9 more retailers have this diamond
Prices start from $213 SGDSave up to $1,365 SGD

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
$213 SGD