CaratHunter
Plans
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 €125 EUR
$140 USD
As of November 1, 2026
Save €1,050 EUR (89%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,175 EUR 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 €125 to €1,175, a €1,050 spread on the same certified stone. MOH London lists it at €1,175. 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
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: €1,175 EUR|Low: €92 EUR|High: €1,183 EUR|Avg: €444 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7€125 EUR
Retailer 5€190 EUR
Retailer 2€233 EUR
Retailer 3€266 EUR
Retailer 4€275 EUR
Retailer 6€501 EUR
Retailer 8€858 EUR
MOH London€1,175 EUR

42 data points across 8 retailers

8 retailers€125 EUR to €1,175 EUR

A
Cheapest Retailer
-
€125 EUR
$140 USD
Final sale: no returns
B+
Retailer 2
-
€190 EUR
$212 USD
View
A
Retailer 3
-
€233 EUR
£205 GBP
View
A
Retailer 4
-
€266 EUR
£234 GBP
View
A
Retailer 5
-
€275 EUR
$307 USD
View
B
Retailer 6
-
€501 EUR
$560 USD
View
B
Retailer 7
-
€858 EUR
$958 USD
View
Most Expensive
B
MOH London
LG823691753 · Oct 29
€1,175 EUR
£1,034 GBP
View
7 more retailers have this diamond
Prices start from €125 EURSave up to €1,050 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
€125 EUR