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Cushion|Lab Grown|IGI

1.03ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG836639790

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836639790

Diamond specifications and retailer prices

From £210 GBP
As of November 4, 2026
Save £1,227 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,437 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836639790 or 836639790. Listed at 11 retailers as of November 4, 2026, with prices from £210 to £1,437, a £1,227 spread on the same certified stone. Do Amore Diamonds lists it at £1,437. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836639790
Dimensions6.57 × 5.47 × 3.79 mm
L/W Ratio1.20
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
6.57 mm5.47 mm1.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836639790
Side View
Table 60.0%Crown 33.8°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
A+
Exceptional
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 4
Current: £1,437 GBP|Low: £210 GBP|High: £1,482 GBP|Avg: £717 GBP|-3.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 2£210 GBP
Retailer 11£322 GBP
Retailer 10£338 GBP
Retailer 6£350 GBP
Retailer 9£496 GBP
Retailer 4£501 GBP
Retailer 5£821 GBP
Retailer 3£956 GBP
Retailer 7£1,037 GBP
Retailer 8£1,064 GBP
Do Amore Diamonds£1,437 GBP

39 data points across 11 retailers

11 retailers£210 GBP to £1,437 GBP

A+
Cheapest Retailer
-
£210 GBP
A
Retailer 2
-
£322 GBP
View
A
Retailer 3
-
£338 GBP
View
A
Retailer 4
-
£350 GBP
View
A
Retailer 5
-
£496 GBP
View
A
Retailer 6
-
£501 GBP
View
B+
Retailer 7
-
£821 GBP
View
B+
Retailer 8
-
£956 GBP
View
B
Retailer 9
-
£1,037 GBP
View
B
Retailer 10
-
£1,064 GBP
View
Most Expensive
B
Do Amore Diamonds
27-5D9DE4E7C · Nov 4
£1,437 GBP
$1,940 USD
View
10 more retailers have this diamond
Prices start from £210 GBPSave up to £1,227 GBP

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
£210 GBP