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Cushion|Lab Grown|IGI

1.30ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG823695112

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG823695112

Diamond specifications and retailer prices

From £433 GBP
$581 USD
As of November 1, 2026
Save £1,683 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,116 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG823695112 or 823695112. Listed at 15 retailers as of November 1, 2026, with prices from £433 to £2,116, a £1,683 spread on the same certified stone. Brilliant Earth lists it at £2,116. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695112
Dimensions7.60 × 5.68 × 3.88 mm
L/W Ratio1.34
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
7.60 mm5.68 mm1.30 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695112
Side View
Table 62.0%Crown 36.1°Girdle: MED-STKPavilion 37°Culet: NoneDepth 68.3%

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 1
Current: £2,116 GBP|Low: £433 GBP|High: £2,377 GBP|Avg: £1,138 GBP|-11.0%
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
November 2, 2026
Retailer 3£433 GBP
Retailer 7£493 GBP
Retailer 12£525 GBP
Retailer 11£555 GBP
Retailer 14£718 GBP
Retailer 10£730 GBP
Retailer 4£743 GBP
Retailer 8£743 GBP
Retailer 2£827 GBP
Retailer 13£1,397 GBP
Retailer 6£1,517 GBP
Retailer 15£1,559 GBP
Retailer 5£1,648 GBP
Retailer 9£2,002 GBP
Brilliant Earth£2,116 GBP

40 data points across 15 retailers

15 retailers£433 GBP to £2,116 GBP

A
Cheapest Retailer
-
£433 GBP
$581 USD
Final sale: no returns
Retailer 2
-
£493 GBP
$662 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
£525 GBP
HK$5,500 HKD
View
A
Retailer 4
-
£555 GBP
$745 USD
View
A
Retailer 5
-
£718 GBP
$964 USD
View
A
Retailer 6
-
£730 GBP
€933 EUR
View
A
Retailer 7
-
£743 GBP
$997 USD
View
A
Retailer 8
-
£743 GBP
View
B+
Retailer 9
-
£827 GBP
ZAR 17,928 ZAR
View
B
Retailer 10
-
£1,397 GBP
View
B
Retailer 11
-
£1,517 GBP
SGD 2,751 SGD
View
B
Retailer 12
-
£1,559 GBP
$2,092 USD
View
B
Retailer 13
-
£1,648 GBP
$2,211 USD
View
B
Retailer 14
-
£2,002 GBP
View
Most Expensive
B
Brilliant Earth
21309769A · Nov 2
£2,116 GBP
$2,840 USD
View
14 more retailers have this diamond
Prices start from £433 GBPSave up to £1,683 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
1.30ct Cushion
£433 GBP