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Princess|Lab Grown|IGI

1.20ct D VS1 Princess Lab Grown Diamond

ID • D/VS1 • IGI LG800681300

Shape and cutting style on the report: Princess cut

Certificate IGI LG800681300

Diamond specifications and retailer prices

From £304 GBP
$408 USD
As of November 1, 2026
Save £506 GBP (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £810 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct lab-grown princess diamond

This 1.2ct lab-grown princess sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG800681300 or 800681300. Listed at 7 retailers as of November 1, 2026, with prices from £304 to £810, a £506 spread on the same certified stone. MOH London lists it at £810. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle45.1°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800681300
Dimensions5.80 × 5.79 × 4.07 mm
L/W Ratio1.00
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
5.80 mm5.79 mm1.20 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG800681300
Side View
Table 70.0%Crown 45.1°Girdle: MediumPavilion 38.1°Culet: NoneDepth 70.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £810 GBP|Low: £285 GBP|High: £820 GBP|Avg: £447 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3£296 GBP
Retailer 6£304 GBP
Retailer 2£312 GBP
Retailer 8£339 GBP
Retailer 5£356 GBP
Retailer 4£525 GBP
Retailer 7£569 GBP
Retailer 9£597 GBP
MOH London£810 GBP

18 data points across 9 retailers

7 retailers£304 GBP to £810 GBP

A
Cheapest Retailer
-
£304 GBP
$408 USD
A
Retailer 2
-
£312 GBP
View
A
Retailer 3
-
£339 GBP
$455 USD
View
Retailer 4
-
£525 GBP
$705 USD
View
Price last confirmed 26 days ago
B
Retailer 5
-
£581 GBP
$779 USD
View
B
Retailer 6
-
£597 GBP
$801 USD
View
Most Expensive
B
MOH London
LG800681300 · Nov 2
£810 GBP
View
6 more retailers have this diamond
Prices start from £304 GBPSave up to £506 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
1.20ct Princess
£304 GBP