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Princess|Lab Grown|IGI

1.20ct D VS1 Princess Lab Grown Diamond

ID • D/VS1 • IGI LG598394536

Shape and cutting style on the report: Princess cut

Certificate IGI LG598394536

Diamond specifications and retailer prices

From £255 GBP
$339 USD
As of October 28, 2026
Save £545 GBP (68%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £841 GBP at MOH London · As of October 21, 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 LG598394536 or 598394536. Listed at 5 retailers as of October 23, 2026, with a 214% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.1°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598394536
Dimensions5.83 × 5.79 × 4.04 mm
L/W Ratio1.01
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
5.83 mm5.79 mm1.20 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG598394536
Side View
Table 68.0%Crown 41.1°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 69.8%

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: Oct 28
Current: £841 GBP|Low: £247 GBP|High: £847 GBP|Avg: £470 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 24, 2026
Retailer 4£255 GBP
Retailer 2£276 GBP
Retailer 6£360 GBP
Retailer 3£375 GBP
Retailer 5£800 GBP
MOH London£841 GBP

38 data points across 6 retailers

5 retailers£255 GBP to £800 GBP

B+
Cheapest Retailer
-
£255 GBP
$339 USD
A
Retailer 2
-
£276 GBP
$367 USD
View
A
Retailer 3
-
£375 GBP
View
B
Retailer 4
-
£800 GBP
$1,063 USD
View
Most Expensive
B
MOH London
LG598394536 · Oct 21
£841 GBP
View
Price last confirmed 8 days ago
4 more retailers have this diamond
Prices start from £255 GBPSave up to £545 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
£255 GBP