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Cushion|Lab Grown|IGI

1.25ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG798609325

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG798609325

Diamond specifications and retailer prices

From £405 GBP
$543 USD
As of November 1, 2026
Save £2,807 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,212 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.25ct lab-grown cushion diamond

This 1.25ct 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 top-tier cut grade and certified by IGI LG798609325 or 798609325. Listed at 22 retailers as of November 1, 2026, with prices from £405 to £3,212, a £2,807 spread on the same certified stone. Do Amore Diamonds lists it at £3,212. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798609325
Dimensions8.12 × 5.63 × 3.63 mm
L/W Ratio1.44
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
8.12 mm5.63 mm1.25 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798609325
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 64.5%

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 1
Current: £853 GBP|Low: £405 GBP|High: £2,091 GBP|Avg: £1,090 GBP|+2.7%
Retailer 1
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 6£405 GBP
Retailer 4£493 GBP
Retailer 10£551 GBP
Retailer 13£663 GBP
Retailer 9£721 GBP
Retailer 8£764 GBP
Retailer 12£771 GBP
Retailer 1£853 GBP
Retailer 3£1,103 GBP
Retailer 15£1,287 GBP
Retailer 2£1,389 GBP
Retailer 14£1,442 GBP
Retailer 5£1,927 GBP
Retailer 7£2,005 GBP
Retailer 11£2,077 GBP

39 data points across 15 retailers

22 retailers£405 GBP to £3,212 GBP

A
Cheapest Retailer
-
£405 GBP
$543 USD
Final sale: no returns
A
Retailer 2
-
£493 GBP
$661 USD
View
A
Retailer 3
-
£512 GBP
$687 USD
View
A
Retailer 4
-
£551 GBP
$740 USD
View
A
Retailer 5
-
£663 GBP
$890 USD
View
A
Retailer 6
-
£721 GBP
€921 EUR
View
A
Retailer 7
-
£764 GBP
View
A
Retailer 8
-
£771 GBP
$1,035 USD
View
B+
Retailer 9
-
£853 GBP
ZAR 18,503 ZAR
View
B+
Retailer 10
-
£1,103 GBP
$1,480 USD
View
B+
Retailer 11
-
£1,287 GBP
$1,727 USD
View
B+
Retailer 12
-
£1,389 GBP
CA$2,589 CAD
View
B+
Retailer 13
-
£1,442 GBP
View
B
Retailer 14
-
£1,558 GBP
$2,091 USD
View
B
Retailer 15
-
£1,694 GBP
$2,274 USD
View
B
Retailer 16
-
£1,694 GBP
$2,274 USD
View
B
Retailer 17
-
£1,803 GBP
$2,419 USD
View
B
Retailer 18
-
£1,927 GBP
$2,586 USD
View
Retailer 19
-
£2,005 GBP
$2,690 USD
View
Price last confirmed 40 days ago
B
Retailer 20
-
£2,077 GBP
View
B
Retailer 21
-
£2,780 GBP
$3,730 USD
View
Most Expensive
B
Do Amore Diamonds
27-889172143 · Nov 2
£3,212 GBP
$4,310 USD
View
21 more retailers have this diamond
Prices start from £405 GBPSave up to £2,807 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
1.25ct Cushion
£405 GBP