Cushion|Lab Grown|IGI

1.03ct I SI1 Cushion Lab Grown Diamond

ID • I/SI1 • IGI LG436045942

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436045942

Diamond specifications and retailer prices

From €238 EUR
$266 USD
As of November 1, 2026
Save €820 EUR (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,058 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045942 or 436045942. Listed at 8 retailers as of November 1, 2026, with prices from €238 to €1,058, a €820 spread on the same certified stone. MOH London lists it at €1,058. 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

1.03
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045942
Dimensions5.92 × 5.81 × 3.94 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
5.92 mm5.81 mm1.03 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045942
Side View
Table 62.0%Crown 34.9°Girdle: MED-THKPavilion 42.1°Culet: NoneDepth 67.8%

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: €1,058 EUR|Low: €233 EUR|High: €1,071 EUR|Avg: €509 EUR|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5€238 EUR
Retailer 8€238 EUR
Retailer 3€264 EUR
Retailer 2€375 EUR
Retailer 4€445 EUR
Retailer 6€472 EUR
Retailer 7€896 EUR
MOH London€1,058 EUR

39 data points across 8 retailers

8 retailers€238 EUR to €1,058 EUR

A
Cheapest Retailer
-
€238 EUR
$266 USD
Final sale: no returns
A
Retailer 2
-
€238 EUR
$266 USD
View
Retailer 3
-
€264 EUR
$295 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€375 EUR
£330 GBP
View
A
Retailer 5
-
€445 EUR
$497 USD
View
A
Retailer 6
-
€472 EUR
$527 USD
View
B+
Retailer 7
-
€896 EUR
$1,001 USD
View
Most Expensive
A
MOH London
436045942 · Nov 1
€1,058 EUR
£931 GBP
View
7 more retailers have this diamond
Prices start from €238 EURSave up to €820 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
1.03ct Cushion
€238 EUR