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Cushion|Lab Grown|IGI

1.86ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG839683801

Certificate IGI LG839683801

Diamond specifications and retailer prices

From £603 GBP
$808 USD
As of October 30, 2026
Save £3,539 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,142 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.86ct lab-grown cushion diamond

This 1.86ct 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 LG839683801 or 839683801. Listed at 15 retailers as of October 30, 2026, with prices from £603 to £4,142, a £3,539 spread on the same certified stone. Do Amore Diamonds lists it at £4,142. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG839683801
Dimensions8.45 × 6.72 × 4.34 mm
L/W Ratio1.26
Top View
8.45 mm6.72 mm1.86 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839683801
Side View
Table 54.0%CrownGirdle: MED-STKPavilionCulet: LargeDepth 64.6%

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: Oct 30
Current: £4,142 GBP|Low: £603 GBP|High: £4,142 GBP|Avg: £1,678 GBP
Do Amore Diamonds
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 5£603 GBP
Retailer 3£928 GBP
Retailer 7£970 GBP
Retailer 9£970 GBP
Retailer 8£1,041 GBP
Retailer 14£1,149 GBP
Retailer 10£1,514 GBP
Retailer 2£1,690 GBP
Retailer 6£1,803 GBP
Retailer 12£1,942 GBP
Retailer 4£1,967 GBP
Retailer 15£2,089 GBP
Retailer 11£2,423 GBP
Retailer 13£2,558 GBP
Do Amore Diamonds£4,142 GBP

8 data points across 15 retailers

15 retailers£603 GBP to £4,142 GBP

A
Cheapest Retailer
-
£603 GBP
$808 USD
Final sale: no returns
A
Retailer 2
-
£928 GBP
$1,244 USD
View
A
Retailer 3
-
£970 GBP
$1,300 USD
View
A
Retailer 4
-
£970 GBP
$1,300 USD
View
A
Retailer 5
-
£1,034 GBP
$1,385 USD
View
A
Retailer 6
-
£1,041 GBP
View
B+
Retailer 7
-
£1,514 GBP
$2,029 USD
View
B+
Retailer 8
-
£1,690 GBP
A$3,484 AUD
View
B+
Retailer 9
-
£1,803 GBP
$2,416 USD
View
B+
Retailer 10
-
£1,942 GBP
View
B+
Retailer 11
-
£1,967 GBP
$2,636 USD
View
B
Retailer 12
-
£2,089 GBP
$2,799 USD
View
B+
Retailer 13
-
£2,423 GBP
$3,247 USD
View
B
Retailer 14
-
£2,558 GBP
View
Most Expensive
B
Do Amore Diamonds
20-E103376 · Oct 31
£4,142 GBP
$5,550 USD
View
14 more retailers have this diamond
Prices start from £603 GBPSave up to £3,539 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
1.86ct Cushion
£603 GBP