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Cushion|Lab Grown|IGI

1.98ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG825659978

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825659978

Diamond specifications and retailer prices

From £578 GBP
$774 USD
As of October 28, 2026
Save £2,781 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,500 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.98ct lab-grown cushion diamond

This 1.98ct 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 LG825659978 or 825659978. Listed at 16 retailers as of October 28, 2026, with a 481% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.98
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659978
Dimensions9.45 × 6.28 × 4.14 mm
L/W Ratio1.50
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
9.45 mm6.28 mm1.98 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659978
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 65.9%

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 28
Current: £3,500 GBP|Low: £578 GBP|High: £4,747 GBP|Avg: £1,804 GBP|-1.4%
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
October 30, 2026
Retailer 3£578 GBP
Retailer 8£634 GBP
Retailer 12£720 GBP
Retailer 9£944 GBP
Retailer 13£960 GBP
Retailer 10£990 GBP
Retailer 11£1,084 GBP
Retailer 5£1,319 GBP
Retailer 14£1,328 GBP
Retailer 16£1,831 GBP
Retailer 4£1,939 GBP
Retailer 15£2,034 GBP
Retailer 6£2,083 GBP
Retailer 7£2,501 GBP
Retailer 2£3,358 GBP
Rare Carat£3,500 GBP

29 data points across 16 retailers

16 retailers£578 GBP to £3,358 GBP

A
Cheapest Retailer
-
£578 GBP
$774 USD
Final sale: no returns
Retailer 2
-
£634 GBP
$849 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£720 GBP
$965 USD
View
A
Retailer 4
-
£944 GBP
View
A
Retailer 5
-
£960 GBP
$1,286 USD
View
A
Retailer 6
-
£990 GBP
€1,263 EUR
View
A
Retailer 7
-
£1,084 GBP
ZAR 23,463 ZAR
View
A
Retailer 8
-
£1,319 GBP
$1,767 USD
View
A
Retailer 9
-
£1,328 GBP
$1,779 USD
View
B+
Retailer 10
-
£1,831 GBP
View
B+
Retailer 11
-
£1,939 GBP
$2,598 USD
View
B+
Retailer 12
-
£2,034 GBP
$2,725 USD
View
B+
Retailer 13
-
£2,083 GBP
SGD 3,772 SGD
View
Retailer 14
-
£2,501 GBP
View
Price last confirmed 13 days ago
B
Retailer 15
-
£3,358 GBP
$4,500 USD
View
Most Expensive
Rare Carat
PD9786599JJ825 · Oct 21
£3,500 GBP
$4,690 USD
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from £578 GBPSave up to £2,781 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
1.98ct Cushion
£578 GBP