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Cushion|Lab Grown|IGI

1.37ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG826639366

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826639366

Diamond specifications and retailer prices

From £316 GBP
$423 USD
As of October 30, 2026
Save £1,819 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,135 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.37ct lab-grown cushion diamond

This 1.37ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG826639366 or 826639366. Listed at 21 retailers as of October 30, 2026, with prices from £316 to £2,135, a £1,819 spread on the same certified stone. Do Amore Diamonds lists it at £2,135. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826639366
Dimensions7.68 × 5.82 × 3.94 mm
L/W Ratio1.32
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
7.68 mm5.82 mm1.37 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826639366
Side View
Table 57.0%Crown 37°Girdle: MED-THKPavilion 37.5°Culet: NoneDepth 67.7%

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: Oct 30
Current: £2,135 GBP|Low: £310 GBP|High: £2,500 GBP|Avg: £979 GBP
Do Amore Diamonds
Retailer 2
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Retailer 21
October 31, 2026
Retailer 10£316 GBP
Retailer 21£349 GBP
Retailer 3£470 GBP
Retailer 5£519 GBP
Retailer 9£581 GBP
Retailer 18£593 GBP
Retailer 4£615 GBP
Retailer 2£630 GBP
Retailer 20£663 GBP
Retailer 6£846 GBP
Retailer 16£940 GBP
Retailer 15£1,000 GBP
Retailer 14£1,042 GBP
Retailer 8£1,066 GBP
Retailer 11£1,308 GBP
Retailer 17£1,354 GBP
Retailer 19£1,425 GBP
Retailer 13£1,478 GBP
Retailer 12£1,478 GBP
Retailer 7£1,979 GBP
Do Amore Diamonds£2,135 GBP

35 data points across 21 retailers

21 retailers£316 GBP to £2,135 GBP

A
Cheapest Retailer
-
£316 GBP
$423 USD
Final sale: no returns
A
Retailer 2
-
£349 GBP
$468 USD
View
A
Retailer 3
-
£470 GBP
$630 USD
View
A
Retailer 4
-
£519 GBP
$695 USD
View
A
Retailer 5
-
£581 GBP
$779 USD
View
A
Retailer 6
-
£593 GBP
€757 EUR
View
A
Retailer 7
-
£615 GBP
$824 USD
View
A
Retailer 8
-
£630 GBP
View
A
Retailer 9
-
£663 GBP
ZAR 14,348 ZAR
View
B+
Retailer 10
-
£846 GBP
$1,133 USD
View
B+
Retailer 11
-
£940 GBP
A$1,938 AUD
View
B+
Retailer 12
-
£1,000 GBP
View
B+
Retailer 13
-
£1,042 GBP
$1,397 USD
View
B+
Retailer 14
-
£1,066 GBP
CA$1,984 CAD
View
B+
Retailer 15
-
£1,308 GBP
$1,753 USD
View
B+
Retailer 16
-
£1,354 GBP
$1,814 USD
View
B+
Retailer 17
-
£1,425 GBP
View
B
Retailer 18
-
£1,478 GBP
A$3,047 AUD
View
B
Retailer 19
-
£1,478 GBP
$1,981 USD
View
B
Retailer 20
-
£1,979 GBP
$2,651 USD
View
Most Expensive
B
Do Amore Diamonds
20-E97341 · Oct 31
£2,135 GBP
$2,860 USD
View
20 more retailers have this diamond
Prices start from £316 GBPSave up to £1,819 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
1.37ct Cushion
£316 GBP