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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 $295 NZD
HK$1,300 HKD
As of November 1, 2026
Save $468 NZD (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,190 NZD 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

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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: $2,190 NZD|Low: $234 NZD|High: $2,213 NZD|Avg: $750 NZD|+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$236 NZD
Retailer 10$461 NZD
Retailer 2$462 NZD
Retailer 8$507 NZD
Retailer 5$535 NZD
Retailer 3$628 NZD
Retailer 6$645 NZD
Retailer 7$678 NZD
Retailer 4$763 NZD
MOH London$2,190 NZD

40 data points across 10 retailers

10 retailers$295 NZD to $763 NZD

A
Cheapest Retailer
-
$295 NZD
HK$1,300 HKD
A
Retailer 2
-
$462 NZD
€248 EUR
View
Retailer 3
-
$507 NZD
$286 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$535 NZD
£237 GBP
View
B+
Retailer 5
-
$628 NZD
$354 USD
View
B+
Retailer 6
-
$645 NZD
£286 GBP
View
B+
Retailer 7
-
$678 NZD
$382 USD
View
B+
Retailer 8
-
$730 NZD
SGD 556 SGD
View
B+
Retailer 9
-
$763 NZD
$430 USD
View
Most Expensive
MOH London
LG805671991 · Oct 25
$2,190 NZD
£972 GBP
View
Price last confirmed 7 days ago
9 more retailers have this diamond
Prices start from $295 NZDSave up to $468 NZD

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
$295 NZD