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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG823691753

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

Certificate IGI LG823691753

Diamond specifications and retailer prices

From $249 NZD
$140 USD
As of November 1, 2026
Save $2,085 NZD (89%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,334 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG823691753 or 823691753. Listed at 8 retailers as of October 29, 2026, with prices from $249 to $2,334, a $2,085 spread on the same certified stone. MOH London lists it at $2,334. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823691753
Dimensions5.80 × 5.74 × 3.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.80 mm5.74 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823691753
Side View
Table 71.0%Crown 35.8°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 63.4%

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: $2,334 NZD|Low: $249 NZD|High: $2,350 NZD|Avg: $885 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$249 NZD
Retailer 5$377 NZD
Retailer 2$463 NZD
Retailer 3$528 NZD
Retailer 4$546 NZD
Retailer 6$994 NZD
Retailer 8$1,703 NZD
MOH London$2,334 NZD

42 data points across 8 retailers

8 retailers$249 NZD to $2,334 NZD

A
Cheapest Retailer
-
$249 NZD
$140 USD
Final sale: no returns
B+
Retailer 2
-
$377 NZD
$212 USD
View
A
Retailer 3
-
$463 NZD
£205 GBP
View
A
Retailer 4
-
$528 NZD
£234 GBP
View
A
Retailer 5
-
$546 NZD
$307 USD
View
B
Retailer 6
-
$994 NZD
$560 USD
View
B
Retailer 7
-
$1,703 NZD
$958 USD
View
Most Expensive
B
MOH London
LG823691753 · Oct 29
$2,334 NZD
£1,034 GBP
View
7 more retailers have this diamond
Prices start from $249 NZDSave up to $2,085 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
1.00ct Cushion
$249 NZD