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Cushion|Lab Grown|IGI

1.02ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG689561766

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG689561766

Diamond specifications and retailer prices

From £217 GBP
As of November 3, 2026
Save £1,153 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,370 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.02ct lab-grown cushion diamond

This 1.02ct 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 LG689561766 or 689561766. Listed at 18 retailers as of November 3, 2026, with prices from £217 to £1,370, a £1,153 spread on the same certified stone. Brilliant Earth lists it at £1,370. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689561766
Dimensions7.22 × 5.28 × 3.43 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
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
7.22 mm5.28 mm1.02 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689561766
Side View
Table 62.0%Crown 33.2°Girdle: STK-THKPavilion 36.9°Culet: NoneDepth 65.0%

Caratlytics Score

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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: Nov 3
Current: £1,370 GBP|Low: £215 GBP|High: £1,785 GBP|Avg: £618 GBP|-23.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 4, 2026
Retailer 12£217 GBP
Retailer 5£240 GBP
Retailer 15£370 GBP
Retailer 6£399 GBP
Retailer 14£405 GBP
Retailer 11£413 GBP
Retailer 4£420 GBP
Retailer 3£430 GBP
Retailer 2£454 GBP
Retailer 9£588 GBP
Retailer 10£646 GBP
Retailer 8£809 GBP
Retailer 13£961 GBP
Retailer 7£1,029 GBP
Retailer 16£1,053 GBP
Brilliant Earth£1,370 GBP

40 data points across 16 retailers

18 retailers£217 GBP to £1,370 GBP

A
Cheapest Retailer
-
£217 GBP
Final sale: no returns
Retailer 2
-
£240 GBP
View
Price last confirmed 10 days ago
A
Retailer 3
-
£370 GBP
View
A
Retailer 4
-
£399 GBP
View
A
Retailer 5
-
£405 GBP
View
A
Retailer 6
-
£413 GBP
View
A
Retailer 7
-
£420 GBP
View
A
Retailer 8
-
£430 GBP
View
A
Retailer 9
-
£454 GBP
View
A
Retailer 10
-
£588 GBP
View
B+
Retailer 11
-
£646 GBP
View
B+
Retailer 12
-
£809 GBP
View
B+
Retailer 13
-
£887 GBP
View
B+
Retailer 14
-
£961 GBP
View
B
Retailer 15
-
£1,029 GBP
View
Retailer 16
-
£1,036 GBP
View
Price last confirmed 87 days ago
B
Retailer 17
-
£1,053 GBP
View
Most Expensive
B
Brilliant Earth
15932506A · Nov 4
£1,370 GBP
$1,850 USD
View
17 more retailers have this diamond
Prices start from £217 GBPSave up to £1,153 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
1.02ct Cushion
£217 GBP