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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG836694133

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG836694133

Diamond specifications and retailer prices

From £1,055 GBP
As of October 30, 2026
Save £3,724 GBP (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,779 GBP at Riddles Jewelry · As of October 29, 2026
View at Riddles Jewelry

About this 1.83ct lab-grown cushion diamond

This 1.83ct 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 LG836694133 or 836694133. Listed at 21 retailers as of October 29, 2026, with prices from £1,055 to £4,779, a £3,724 spread on the same certified stone. Riddles Jewelry lists it at £4,779. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836694133
Dimensions7.49 × 7.23 × 4.77 mm
L/W Ratio1.04
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
7.49 mm7.23 mm1.83 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836694133
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 66.0%

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: £1,348 GBP|Low: £931 GBP|High: £4,538 GBP|Avg: £2,221 GBP|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
October 31, 2026
Retailer 5£931 GBP
Retailer 11£1,055 GBP
Retailer 9£1,057 GBP
Retailer 15£1,060 GBP
Retailer 18£1,261 GBP
Retailer 16£1,294 GBP
Retailer 1£1,348 GBP
Retailer 12£1,425 GBP
Retailer 4£1,591 GBP
Retailer 13£1,711 GBP
Retailer 17£2,502 GBP
Retailer 3£2,571 GBP
Retailer 6£2,974 GBP
Retailer 14£3,172 GBP
Retailer 7£3,251 GBP
Retailer 8£3,898 GBP
Retailer 10£4,395 GBP
Retailer 2£4,411 GBP

34 data points across 18 retailers

21 retailers£1,055 GBP to £4,779 GBP

A
Cheapest Retailer
-
£1,055 GBP
A
Retailer 2
-
£1,057 GBP
$1,416 USD
View
Final sale: no returns
A
Retailer 3
-
£1,060 GBP
$1,420 USD
View
A
Retailer 4
-
£1,142 GBP
$1,530 USD
View
A
Retailer 5
-
£1,261 GBP
$1,690 USD
View
B+
Retailer 6
-
£1,294 GBP
$1,734 USD
View
A
Retailer 7
-
£1,348 GBP
View
B+
Retailer 8
-
£1,425 GBP
€1,818 EUR
View
B+
Retailer 9
-
£1,591 GBP
$2,132 USD
View
B+
Retailer 10
-
£1,711 GBP
ZAR 37,027 ZAR
View
B+
Retailer 11
-
£2,278 GBP
$3,052 USD
View
B
Retailer 12
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£2,502 GBP
$3,353 USD
View
B
Retailer 13
-
£2,571 GBP
View
B
Retailer 14
-
£2,819 GBP
CA$5,246 CAD
View
B
Retailer 15
-
£2,974 GBP
$3,985 USD
View
B
Retailer 16
-
£3,172 GBP
View
B
Retailer 17
-
£3,251 GBP
$4,356 USD
View
B
Retailer 18
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£3,898 GBP
$5,223 USD
View
B
Retailer 19
-
£4,411 GBP
$5,910 USD
View
B
Retailer 20
-
£4,485 GBP
$6,009 USD
View
Most Expensive
B
Riddles Jewelry
1984907408 · Oct 29
£4,779 GBP
$6,403 USD
View
20 more retailers have this diamond
Prices start from £1,055 GBPSave up to £3,724 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
1.83ct Cushion
£1,055 GBP