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Cushion|Lab Grown|IGI

1.81ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG844644968

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG844644968

Diamond specifications and retailer prices

From £428 GBP
As of October 30, 2026
Save £2,341 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,769 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG844644968 or 844644968. Listed at 15 retailers as of October 30, 2026, with prices from £428 to £2,769, a £2,341 spread on the same certified stone. Brilliant Earth lists it at £2,769. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844644968
Dimensions8.58 × 6.22 × 4.34 mm
L/W Ratio1.38
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
8.58 mm6.22 mm1.81 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844644968
Side View
Table 61.0%Crown 32.4°Girdle: STK-THKPavilion 36.5°Culet: NoneDepth 69.8%

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: £2,769 GBP|Low: £427 GBP|High: £3,202 GBP|Avg: £1,404 GBP|-13.5%
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
October 31, 2026
Retailer 9£428 GBP
Retailer 8£478 GBP
Retailer 13£489 GBP
Retailer 12£580 GBP
Retailer 11£657 GBP
Retailer 6£849 GBP
Retailer 10£941 GBP
Retailer 3£1,079 GBP
Retailer 15£1,485 GBP
Retailer 7£1,585 GBP
Retailer 2£2,311 GBP
Retailer 5£2,440 GBP
Retailer 4£2,552 GBP
Retailer 14£2,620 GBP
Brilliant Earth£2,769 GBP

16 data points across 15 retailers

15 retailers£428 GBP to £2,769 GBP

A
Cheapest Retailer
-
£428 GBP
A
Retailer 2
-
£478 GBP
$640 USD
View
A
Retailer 3
-
£489 GBP
$655 USD
View
A
Retailer 4
-
£580 GBP
$777 USD
View
A
Retailer 5
-
£657 GBP
€839 EUR
View
A
Retailer 6
-
£849 GBP
$1,137 USD
View
A
Retailer 7
-
£941 GBP
A$1,939 AUD
View
A
Retailer 8
-
£1,079 GBP
$1,446 USD
View
B+
Retailer 9
-
£1,485 GBP
View
Retailer 10
-
£1,585 GBP
$2,124 USD
View
Price last confirmed 15 days ago
B
Retailer 11
-
£2,311 GBP
A$4,763 AUD
View
Retailer 12
-
£2,440 GBP
$3,270 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
£2,552 GBP
$3,419 USD
View
B
Retailer 14
-
£2,620 GBP
$3,510 USD
View
Most Expensive
B
Brilliant Earth
22165855Y · Oct 30
£2,769 GBP
$3,710 USD
View
14 more retailers have this diamond
Prices start from £428 GBPSave up to £2,341 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
£428 GBP