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Round|Lab Grown|IGI

0.80ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG783642945

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783642945

Diamond specifications and retailer prices

From £137 GBP
As of November 4, 2026
Save £520 GBP (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £658 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.8ct lab-grown round diamond

This 0.8ct lab-grown round sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783642945 or 783642945. Listed at 9 retailers as of November 4, 2026, with prices from £137 to £658, a £520 spread on the same certified stone. MOH London lists it at £658. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.80
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783642945
Dimensions6.01 × 6.03 × 3.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.01 mm6.03 mm0.80 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783642945
Side View
Table 59.0%Crown 33°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £658 GBP|Low: £137 GBP|High: £663 GBP|Avg: £332 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3£137 GBP
Retailer 5£185 GBP
Retailer 2£243 GBP
Retailer 8£257 GBP
Retailer 4£275 GBP
Retailer 7£316 GBP
Retailer 6£424 GBP
Retailer 9£494 GBP
MOH London£658 GBP

41 data points across 9 retailers

9 retailers£137 GBP to £658 GBP

A
Cheapest Retailer
-
£137 GBP
A
Retailer 2
-
£185 GBP
View
B+
Retailer 3
-
£243 GBP
View
B+
Retailer 4
-
£257 GBP
View
B+
Retailer 5
-
£275 GBP
View
B+
Retailer 6
-
£316 GBP
View
B
Retailer 7
-
£424 GBP
View
B
Retailer 8
-
£494 GBP
View
Most Expensive
B
MOH London
LG783642945 · Nov 4
£658 GBP
View
8 more retailers have this diamond
Prices start from £137 GBPSave up to £520 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
0.80ct Round
£137 GBP