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Cushion|Lab Grown|IGI

1.02ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG821612292

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821612292

Diamond specifications and retailer prices

From £260 GBP
As of November 4, 2026
Save £804 GBP (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,682 GBP at Brilliant Earth · As of October 28, 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 LG821612292 or 821612292. Listed at 18 retailers as of November 4, 2026, with a 309% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle43.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821612292
Dimensions6.85 × 5.36 × 3.78 mm
L/W Ratio1.28
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
6.85 mm5.36 mm1.02 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821612292
Side View
Table 63.0%Crown 33.2°Girdle: MED-STKPavilion 43.6°Culet: NoneDepth 70.5%

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 4
Current: £1,682 GBP|Low: £153 GBP|High: £1,682 GBP|Avg: £602 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 4, 2026
Retailer 11£153 GBP
Retailer 10£243 GBP
Retailer 2£260 GBP
Retailer 7£269 GBP
Retailer 18£370 GBP
Retailer 17£406 GBP
Retailer 5£419 GBP
Retailer 3£433 GBP
Retailer 15£437 GBP
Retailer 12£441 GBP
Retailer 9£502 GBP
Retailer 13£621 GBP
Retailer 14£669 GBP
Retailer 4£853 GBP
Retailer 8£996 GBP
Retailer 16£1,016 GBP
Retailer 19£1,053 GBP
Retailer 6£1,064 GBP
Brilliant Earth£1,682 GBP

20 data points across 19 retailers

18 retailers£260 GBP to £1,064 GBP

Retailer 1
-
£243 GBP
Price last confirmed 9 days ago
Final sale: no returns
A
Retailer 2
-
£260 GBP
View
Retailer 3
-
£269 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£370 GBP
View
A
Retailer 5
-
£406 GBP
View
A
Retailer 6
-
£419 GBP
View
A
Retailer 7
-
£433 GBP
View
A
Retailer 8
-
£437 GBP
View
A
Retailer 9
-
£441 GBP
View
Retailer 10
-
£502 GBP
View
Price last confirmed 9 days ago
A
Retailer 11
-
£621 GBP
View
B+
Retailer 12
-
£669 GBP
View
B+
Retailer 13
-
£853 GBP
View
B
Retailer 14
-
£996 GBP
View
B+
Retailer 15
-
£1,016 GBP
View
B
Retailer 16
-
£1,053 GBP
View
B+
Retailer 17
-
£1,064 GBP
View
Most Expensive
Brilliant Earth
22335223A · Oct 28
£1,682 GBP
$2,270 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from £260 GBPSave up to £804 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
£260 GBP