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Princess|Lab Grown|IGI

1.20ct F VS1 Princess Lab Grown Diamond

VG • F/VS1 • IGI LG618498608

Shape and cutting style on the report: Princess cut

Certificate IGI LG618498608

Diamond specifications and retailer prices

From £173 GBP
As of November 4, 2026
Save £1,164 GBP (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,337 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown princess diamond

This 1.2ct lab-grown princess sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG618498608 or 618498608. Listed at 16 retailers as of November 4, 2026, with prices from £173 to £1,337, a £1,164 spread on the same certified stone. Do Amore Diamonds lists it at £1,337. 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

1.20
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618498608
Dimensions5.91 × 5.75 × 3.98 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.91 mm5.75 mm1.20 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618498608
Side View
Table 66.0%Crown 34.2°Girdle: STK-THKPavilion 37.2°Culet: NoneDepth 69.2%

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: Nov 4
Current: £1,337 GBP|Low: £173 GBP|High: £1,337 GBP|Avg: £514 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 8£173 GBP
Retailer 2£227 GBP
Retailer 4£303 GBP
Retailer 10£329 GBP
Retailer 5£348 GBP
Retailer 11£464 GBP
Retailer 9£467 GBP
Retailer 3£552 GBP
Retailer 12£558 GBP
Retailer 7£614 GBP
Retailer 6£763 GBP
Do Amore Diamonds£1,337 GBP

40 data points across 12 retailers

16 retailers£173 GBP to £1,337 GBP

A
Cheapest Retailer
-
£173 GBP
A
Retailer 2
-
£227 GBP
View
A
Retailer 3
-
£249 GBP
View
A
Retailer 4
-
£303 GBP
View
A
Retailer 5
-
£329 GBP
View
A
Retailer 6
-
£348 GBP
View
B+
Retailer 7
-
£356 GBP
View
Retailer 8
-
£464 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£464 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£467 GBP
View
Retailer 11
-
£552 GBP
View
Price last confirmed 32 days ago
B
Retailer 12
-
£558 GBP
View
B
Retailer 13
-
£614 GBP
View
B
Retailer 14
-
£742 GBP
View
B
Retailer 15
-
£763 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8AF364F45 · Nov 4
£1,337 GBP
$1,800 USD
View
15 more retailers have this diamond
Prices start from £173 GBPSave up to £1,164 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
£173 GBP