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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 €256 EUR
$286 USD
As of October 30, 2026
Save €605 EUR (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €861 EUR at MOH London · As of October 26, 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 October 26, 2026, with prices from €256 to €861, a €605 spread on the same certified stone. MOH London lists it at €861. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €861 EUR|Low: €254 EUR|High: €871 EUR|Avg: €458 EUR|+5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 4€256 EUR
Retailer 8€314 EUR
Retailer 2€319 EUR
Retailer 6€328 EUR
Retailer 7€346 EUR
Retailer 3€487 EUR
Retailer 5€510 EUR
MOH London€861 EUR

44 data points across 8 retailers

9 retailers€256 EUR to €861 EUR

A
Cheapest Retailer
-
€256 EUR
$286 USD
A
Retailer 2
-
€314 EUR
View
A
Retailer 3
-
€319 EUR
£281 GBP
View
A
Retailer 4
-
€328 EUR
$366 USD
View
A
Retailer 5
-
€346 EUR
£304 GBP
View
Retailer 6
-
€474 EUR
$529 USD
View
Price last confirmed 111 days ago
B
Retailer 7
-
€487 EUR
$544 USD
View
B+
Retailer 8
-
€510 EUR
$570 USD
View
Most Expensive
B
MOH London
LG808639133 · Oct 26
€861 EUR
£757 GBP
View
8 more retailers have this diamond
Prices start from €256 EURSave up to €605 EUR

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
€256 EUR