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Cushion|Lab Grown|IGI

1.03ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG830622469

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830622469

Diamond specifications and retailer prices

From £343 GBP
$460 USD
As of October 25, 2026
Save £1,373 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,717 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830622469 or 830622469. Listed at 13 retailers as of October 25, 2026, with prices from £343 to £1,717, a £1,373 spread on the same certified stone. Brilliant Earth lists it at £1,717. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830622469
Dimensions7.53 × 5.02 × 3.46 mm
L/W Ratio1.50
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
7.53 mm5.02 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830622469
Side View
Table 59.0%Crown 31.8°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 68.9%

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: Oct 25
Current: £1,717 GBP|Low: £343 GBP|High: £2,060 GBP|Avg: £878 GBP|-16.7%
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
October 30, 2026
Retailer 10£343 GBP
Retailer 11£468 GBP
Retailer 9£470 GBP
Retailer 6£545 GBP
Retailer 13£549 GBP
Retailer 8£590 GBP
Retailer 2£620 GBP
Retailer 3£857 GBP
Retailer 4£911 GBP
Retailer 5£1,022 GBP
Retailer 12£1,132 GBP
Retailer 7£1,348 GBP
Brilliant Earth£1,717 GBP

40 data points across 13 retailers

13 retailers£343 GBP to £1,717 GBP

A
Cheapest Retailer
-
£343 GBP
$460 USD
A
Retailer 2
-
£468 GBP
$627 USD
View
A
Retailer 3
-
£470 GBP
$630 USD
View
A
Retailer 4
-
£545 GBP
€696 EUR
View
A
Retailer 5
-
£549 GBP
$735 USD
View
A
Retailer 6
-
£590 GBP
ZAR 12,761 ZAR
View
A
Retailer 7
-
£620 GBP
View
B+
Retailer 8
-
£857 GBP
$1,148 USD
View
B+
Retailer 9
-
£911 GBP
SGD 1,650 SGD
View
Retailer 10
-
£1,022 GBP
$1,370 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
£1,132 GBP
$1,517 USD
View
B+
Retailer 12
-
£1,348 GBP
View
Most Expensive
B
Brilliant Earth
21433979A · Oct 30
£1,717 GBP
$2,300 USD
View
12 more retailers have this diamond
Prices start from £343 GBPSave up to £1,373 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
£343 GBP