CaratHunter
Plans
Cushion|Lab Grown|IGI

1.00ct D SI2 Cushion Lab Grown Diamond

ID • D/SI2 • IGI LG808639133

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

Certificate IGI LG808639133

Diamond specifications and retailer prices

From $516 NZD
As of November 6, 2026
Save $1,193 NZD (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,709 NZD at MOH London · As of November 4, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG808639133 or 808639133. Listed at 9 retailers as of November 4, 2026, with prices from $516 to $1,709, a $1,193 spread on the same certified stone. MOH London lists it at $1,709. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808639133
Dimensions5.85 × 5.77 × 3.84 mm
L/W Ratio1.01
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 Type II
Top View
5.85 mm5.77 mm1.00 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808639133
Side View
Table 63.0%Crown 33.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 66.6%

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 6
Current: $1,709 NZD|Low: $512 NZD|High: $1,755 NZD|Avg: $919 NZD|+4.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$516 NZD
Retailer 2$621 NZD
Retailer 3$642 NZD
Retailer 7$660 NZD
Retailer 8$696 NZD
Retailer 4$992 NZD
Retailer 6$1,028 NZD
MOH London$1,709 NZD

45 data points across 8 retailers

9 retailers$516 NZD to $1,709 NZD

A
Cheapest Retailer
-
$516 NZD
A
Retailer 2
-
$621 NZD
View
A
Retailer 3
-
$642 NZD
View
A
Retailer 4
-
$660 NZD
View
A
Retailer 5
-
$696 NZD
View
Retailer 6
-
$954 NZD
View
Price last confirmed 117 days ago
B
Retailer 7
-
$992 NZD
View
B+
Retailer 8
-
$1,028 NZD
View
Most Expensive
B
MOH London
LG808639133 · Nov 4
$1,709 NZD
£746 GBP
View
8 more retailers have this diamond
Prices start from $516 NZDSave up to $1,193 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
$516 NZD