CaratHunter
Plans
Cushion|Lab Grown|IGI

0.81ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG816658195

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

Certificate IGI LG816658195

Diamond specifications and retailer prices

From £316 GBP
As of November 1, 2026
Save £1,119 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,435 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 0.81ct lab-grown cushion diamond

This 0.81ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816658195 or 816658195. Listed at 11 retailers as of November 1, 2026, with prices from £316 to £1,435, a £1,119 spread on the same certified stone. Diamond Exchange Canada lists it at £1,435. 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

0.81
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658195
Dimensions5.34 × 5.17 × 3.47 mm
L/W Ratio1.03
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
5.34 mm5.17 mm0.81 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816658195
Side View
Table 62.0%Crown 35.2°Girdle: THN-THKPavilion 38.4°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,435 GBP|Low: £312 GBP|High: £2,242 GBP|Avg: £796 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9£316 GBP
Retailer 5£317 GBP
Retailer 8£440 GBP
Retailer 10£497 GBP
Retailer 3£611 GBP
Retailer 11£773 GBP
Retailer 4£812 GBP
Retailer 7£866 GBP
Retailer 6£1,072 GBP
Retailer 2£1,183 GBP
Diamond Exchange Canada£1,435 GBP

28 data points across 11 retailers

11 retailers£316 GBP to £1,435 GBP

A
Cheapest Retailer
-
£316 GBP
A
Retailer 2
-
£317 GBP
View
A
Retailer 3
-
£440 GBP
View
A
Retailer 4
-
£497 GBP
View
B+
Retailer 5
-
£611 GBP
View
B+
Retailer 6
-
£773 GBP
View
B+
Retailer 7
-
£812 GBP
View
Retailer 8
-
£866 GBP
View
Price last confirmed 7 days ago
B
Retailer 9
-
£1,072 GBP
View
B
Retailer 10
-
£1,183 GBP
View
Most Expensive
B
Diamond Exchange Canada
1995491237 · Nov 5
£1,435 GBP
CA$2,682 CAD
View
10 more retailers have this diamond
Prices start from £316 GBPSave up to £1,119 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
0.81ct Cushion
£316 GBP