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Cushion|Lab Grown|IGI

0.73ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG468186992

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG468186992

Diamond specifications and retailer prices

From $500 NZD
$282 USD
As of November 1, 2026
Save $177 NZD (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,159 NZD at MOH London · As of October 15, 2026
View at MOH London

About this 0.73ct lab-grown cushion diamond

This 0.73ct 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 LG468186992 or 468186992. Listed at 4 retailers as of November 1, 2026, with a 35% 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

0.73
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG468186992
Dimensions5.26 × 5.14 × 3.59 mm
L/W Ratio1.02
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
5.26 mm5.14 mm0.73 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG468186992
Side View
Table 59.5%Crown 35.5°Girdle: STK-VTKPavilion 41°Culet: NoneDepth 69.8%

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: $2,159 NZD|Low: $346 NZD|High: $2,161 NZD|Avg: $1,164 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3$500 NZD
Retailer 2$521 NZD
Retailer 4$678 NZD
Retailer 5$1,207 NZD
Retailer 6$1,561 NZD
Retailer 7$1,561 NZD
MOH London$2,159 NZD

37 data points across 7 retailers

4 retailers$500 NZD to $678 NZD

A
Cheapest Retailer
-
$500 NZD
$282 USD
A
Retailer 2
-
$521 NZD
£231 GBP
View
B+
Retailer 3
-
$678 NZD
$382 USD
View
Most Expensive
MOH London
LG468186992 · Oct 15
$2,159 NZD
£958 GBP
View
Price last confirmed 18 days ago
3 more retailers have this diamond
Prices start from $500 NZDSave up to $177 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
0.73ct Cushion
$500 NZD