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Round|Lab Grown|IGI

0.81ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG515231578

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515231578

Diamond specifications and retailer prices

From £179 GBP
$238 USD
As of October 28, 2026
Save £618 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £796 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.81ct lab-grown round diamond

This 0.81ct lab-grown round sits in the just-under-one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515231578 or 515231578. Listed at 10 retailers as of October 28, 2026, with prices from £179 to £796, a £618 spread on the same certified stone. MOH London lists it at £796. 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

0.81
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515231578
Dimensions5.86 × 5.93 × 3.74 mm
L/W Ratio1.01
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
5.86 mm5.93 mm0.81 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515231578
Side View
Table 57.5%Crown 36.4°Girdle: UNDPavilion 41.2°Culet: NoneDepth 63.6%

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 28
Current: £796 GBP|Low: £128 GBP|High: £801 GBP|Avg: £393 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4£159 GBP
Retailer 6£179 GBP
Retailer 7£242 GBP
Retailer 2£321 GBP
Retailer 5£340 GBP
Retailer 8£371 GBP
Retailer 9£466 GBP
Retailer 3£638 GBP
MOH London£796 GBP

19 data points across 9 retailers

10 retailers£179 GBP to £796 GBP

A
Retailer 1
-
£159 GBP
$212 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£179 GBP
$238 USD
View
Final sale: no returns
A
Retailer 3
-
£185 GBP
$246 USD
View
A
Retailer 4
-
£197 GBP
$263 USD
View
B+
Retailer 5
-
£242 GBP
$322 USD
View
B+
Retailer 6
-
£321 GBP
€407 EUR
View
B+
Retailer 7
-
£340 GBP
$453 USD
View
B
Retailer 8
-
£635 GBP
$846 USD
View
B
Retailer 9
-
£638 GBP
$849 USD
View
Most Expensive
B
MOH London
LG515231578 · Oct 29
£796 GBP
View
9 more retailers have this diamond
Prices start from £179 GBPSave up to £618 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 Round
£179 GBP