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Cushion|Lab Grown|IGI

1.55ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG768632359

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG768632359

Diamond specifications and retailer prices

From £522 GBP
$700 USD
As of November 2, 2026
Save £2,616 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,137 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768632359 or 768632359. Listed at 11 retailers as of November 1, 2026, with prices from £522 to £3,137, a £2,616 spread on the same certified stone. Do Amore Diamonds lists it at £3,137. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768632359
Dimensions6.76 × 6.61 × 4.47 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
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
6.76 mm6.61 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768632359
Side View
Table 67.0%Crown 36.3°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
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 2
Current: £3,137 GBP|Low: £522 GBP|High: £4,479 GBP|Avg: £1,582 GBP|-30.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5£522 GBP
Retailer 8£547 GBP
Retailer 3£593 GBP
Retailer 11£662 GBP
Retailer 7£683 GBP
Retailer 2£775 GBP
Retailer 9£1,261 GBP
Retailer 4£2,017 GBP
Retailer 10£2,023 GBP
Retailer 6£2,377 GBP
Do Amore Diamonds£3,137 GBP

32 data points across 11 retailers

11 retailers£522 GBP to £3,137 GBP

A
Cheapest Retailer
-
£522 GBP
$700 USD
A
Retailer 2
-
£547 GBP
$734 USD
View
A
Retailer 3
-
£593 GBP
$796 USD
View
Final sale: no returns
A
Retailer 4
-
£662 GBP
$889 USD
View
A
Retailer 5
-
£683 GBP
$917 USD
View
A
Retailer 6
-
£775 GBP
€991 EUR
View
B+
Retailer 7
-
£1,261 GBP
$1,692 USD
View
B+
Retailer 8
-
£2,017 GBP
View
Retailer 9
-
£2,023 GBP
$2,715 USD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£2,377 GBP
$3,190 USD
View
Most Expensive
B
Do Amore Diamonds
27-E8663AC29 · Nov 1
£3,137 GBP
$4,210 USD
View
10 more retailers have this diamond
Prices start from £522 GBPSave up to £2,616 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
1.55ct Cushion
£522 GBP