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Cushion|Lab Grown|IGI

0.74ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG510187212

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG510187212

Diamond specifications and retailer prices

From $434 NZD
$244 USD
As of November 1, 2026
Save $460 NZD (51%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,939 NZD at MOH London · As of October 19, 2026
View at MOH London

About this 0.74ct lab-grown cushion diamond

This 0.74ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG510187212 or 510187212. Listed at 6 retailers as of November 1, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.74
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.5°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG510187212
Dimensions5.68 × 4.71 × 3.26 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.68 mm4.71 mm0.74 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG510187212
Side View
Table 67.0%Crown 39.5°Girdle: MED-VTKPavilion 37.5°Culet: NoneDepth 69.2%

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: $1,939 NZD|Low: $311 NZD|High: $1,950 NZD|Avg: $1,027 NZD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$434 NZD
Retailer 6$451 NZD
Retailer 3$776 NZD
Retailer 4$825 NZD
Retailer 2$893 NZD
Retailer 7$1,932 NZD
MOH London$1,939 NZD

41 data points across 7 retailers

6 retailers$434 NZD to $893 NZD

A
Cheapest Retailer
-
$434 NZD
$244 USD
Final sale: no returns
A
Retailer 2
-
$451 NZD
$254 USD
View
B+
Retailer 3
-
$776 NZD
€416 EUR
View
B
Retailer 4
-
$825 NZD
$464 USD
View
B
Retailer 5
-
$893 NZD
£396 GBP
View
Most Expensive
MOH London
LG510187212 · Oct 19
$1,939 NZD
£859 GBP
View
Price last confirmed 15 days ago
5 more retailers have this diamond
Prices start from $434 NZDSave up to $460 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
0.74ct Cushion
$434 NZD