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Cushion|Lab Grown|IGI

1.81ct D IF Cushion Lab Grown Diamond

GD • D/IF • IGI LG746511052

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

Certificate IGI LG746511052

Diamond specifications and retailer prices

From £539 GBP
$722 USD
As of October 29, 2026
Save £1,863 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,608 GBP at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 1.81ct lab-grown cushion diamond

This 1.81ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG746511052 or 746511052. Listed at 17 retailers as of October 26, 2026, with a 346% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.81
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG746511052
Dimensions6.94 × 6.85 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm6.85 mm1.81 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG746511052
Side View
Table 60.0%Crown 37.2°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 66.4%

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 29
Current: £2,608 GBP|Low: £539 GBP|High: £2,661 GBP|Avg: £1,422 GBP|+10.1%
Rare Carat
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 17£539 GBP
Retailer 7£569 GBP
Retailer 10£650 GBP
Retailer 9£702 GBP
Retailer 2£749 GBP
Retailer 3£800 GBP
Retailer 12£888 GBP
Retailer 5£1,037 GBP
Retailer 13£1,131 GBP
Retailer 6£1,417 GBP
Retailer 14£1,740 GBP
Retailer 15£1,905 GBP
Retailer 16£1,927 GBP
Retailer 11£1,951 GBP
Retailer 8£2,337 GBP
Retailer 4£2,402 GBP
Rare Carat£2,608 GBP

42 data points across 17 retailers

17 retailers£539 GBP to £2,402 GBP

A
Cheapest Retailer
-
£539 GBP
$722 USD
Final sale: no returns
Retailer 2
-
£569 GBP
$763 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£650 GBP
HK$6,800 HKD
View
A
Retailer 4
-
£702 GBP
$940 USD
View
A
Retailer 5
-
£749 GBP
$1,004 USD
View
A
Retailer 6
-
£800 GBP
$1,072 USD
View
A
Retailer 7
-
£888 GBP
View
A
Retailer 8
-
£1,037 GBP
ZAR 22,446 ZAR
View
B+
Retailer 9
-
£1,131 GBP
$1,516 USD
View
Retailer 10
-
£1,417 GBP
A$2,921 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£1,740 GBP
View
B
Retailer 12
-
£1,905 GBP
$2,553 USD
View
B
Retailer 13
-
£1,927 GBP
$2,582 USD
View
B
Retailer 14
-
£1,951 GBP
$2,614 USD
View
Retailer 15
-
£2,337 GBP
A$4,818 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
£2,402 GBP
View
Most Expensive
Rare Carat
C909-254-A · Oct 19
£2,608 GBP
$3,495 USD
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from £539 GBPSave up to £1,863 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
1.81ct Cushion
£539 GBP