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Cushion|Lab Grown|IGI

1.83ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG834614545

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG834614545

Diamond specifications and retailer prices

From £1,055 GBP
As of October 27, 2026
Save £3,724 GBP (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,779 GBP at Riddles Jewelry · As of October 27, 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 LG834614545 or 834614545. Listed at 20 retailers as of October 27, 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 angle34.5°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834614545
Dimensions9.07 × 6.37 × 4.18 mm
L/W Ratio1.42
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
9.07 mm6.37 mm1.83 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834614545
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 65.6%

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 27
Current: £1,414 GBP|Low: £931 GBP|High: £4,779 GBP|Avg: £2,223 GBP|+2.2%
Retailer 1
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Retailer 20
Riddles Jewelry
October 27, 2026
Retailer 4£931 GBP
Retailer 12£1,055 GBP
Retailer 8£1,057 GBP
Retailer 17£1,060 GBP
Retailer 13£1,142 GBP
Retailer 20£1,261 GBP
Retailer 18£1,294 GBP
Retailer 14£1,340 GBP
Retailer 1£1,414 GBP
Retailer 3£1,591 GBP
Retailer 16£1,695 GBP
Retailer 11£2,278 GBP
Retailer 19£2,502 GBP
Retailer 2£2,571 GBP
Retailer 10£2,819 GBP
Retailer 5£2,974 GBP
Retailer 15£3,160 GBP
Retailer 6£3,251 GBP
Retailer 7£3,898 GBP
Retailer 9£4,395 GBP
Riddles Jewelry£4,779 GBP

34 data points across 21 retailers

20 retailers£1,055 GBP to £4,779 GBP

Retailer 1
-
£931 GBP
$1,247 USD
Price last confirmed 14 days ago
A
Retailer 2
-
£1,055 GBP
View
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
-
£1,340 GBP
View
B+
Retailer 8
-
£1,414 GBP
€1,804 EUR
View
B+
Retailer 9
-
£1,591 GBP
$2,132 USD
View
B+
Retailer 10
-
£1,695 GBP
ZAR 36,682 ZAR
View
B+
Retailer 11
-
£2,278 GBP
$3,052 USD
View
B
Retailer 12
-
£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
-
£3,160 GBP
View
B
Retailer 17
-
£3,251 GBP
$4,356 USD
View
Retailer 18
-
£3,898 GBP
$5,223 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£4,485 GBP
$6,009 USD
View
Most Expensive
B
Riddles Jewelry
1984907406 · Oct 27
£4,779 GBP
$6,403 USD
View
19 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