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Cushion|Lab Grown|IGI

0.89ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG799607979

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG799607979

Diamond specifications and retailer prices

From £381 GBP
As of November 3, 2026
Save £2,016 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,397 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.89ct lab-grown cushion diamond

This 0.89ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG799607979 or 799607979. Listed at 12 retailers as of November 1, 2026, with prices from £381 to £2,397, a £2,016 spread on the same certified stone. MOH London lists it at £2,397. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.89
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799607979
Dimensions5.50 × 5.41 × 3.62 mm
L/W Ratio1.02
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
5.50 mm5.41 mm0.89 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799607979
Side View
Table 62.0%Crown 34.3°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 66.9%

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: Nov 3
Current: £2,397 GBP|Low: £381 GBP|High: £5,015 GBP|Avg: £1,573 GBP|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 12£381 GBP
Retailer 6£482 GBP
Retailer 10£504 GBP
Retailer 8£698 GBP
Retailer 11£926 GBP
Retailer 4£988 GBP
Retailer 5£1,245 GBP
Retailer 2£1,868 GBP
Retailer 9£1,943 GBP
Retailer 7£2,091 GBP
MOH London£2,397 GBP
Retailer 3£5,015 GBP

33 data points across 12 retailers

12 retailers£381 GBP to £2,397 GBP

A
Cheapest Retailer
-
£381 GBP
A
Retailer 2
-
£482 GBP
View
Retailer 3
-
£504 GBP
View
Price last confirmed 16 days ago
B+
Retailer 4
-
£698 GBP
View
B+
Retailer 5
-
£926 GBP
View
B+
Retailer 6
-
£988 GBP
View
B
Retailer 7
-
£1,245 GBP
View
B
Retailer 8
-
£1,868 GBP
View
B
Retailer 9
-
£1,943 GBP
View
B
Retailer 10
-
£2,091 GBP
View
Most Expensive
B
MOH London
LG799607979 · Nov 1
£2,397 GBP
View
10 more retailers have this diamond
Prices start from £381 GBPSave up to £2,016 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
0.89ct Cushion
£381 GBP