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Round|Lab Grown|GCAL

1.20ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • GCAL 291690244

Shape and cutting style on the report: Round brilliant

Certificate GCAL 291690244

Diamond specifications and retailer prices

From £297 GBP
$399 USD
As of November 1, 2026
Save £571 GBP (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £868 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GCAL 291690244. Listed at 5 retailers as of November 1, 2026, with prices from £297 to £868, a £571 spread on the same certified stone. MOH London lists it at £868. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 291690244
Dimensions6.96 × 6.93 × 4.11 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.96 mm6.93 mm1.20 ctI / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGCAL 291690244
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £868 GBP|Low: £159 GBP|High: £878 GBP|Avg: £481 GBP|+6.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2£168 GBP
Retailer 3£297 GBP
Retailer 4£368 GBP
Retailer 5£726 GBP
MOH London£868 GBP

12 data points across 5 retailers

5 retailers£297 GBP to £868 GBP

Retailer 1
-
£168 GBP
$226 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
£297 GBP
$399 USD
View
B+
Retailer 3
-
£368 GBP
$494 USD
View
B
Retailer 4
-
£726 GBP
$974 USD
View
Most Expensive
B
MOH London
291690244 · Nov 1
£868 GBP
View
4 more retailers have this diamond
Prices start from £297 GBPSave up to £571 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.

B+
1.20ct Round
£297 GBP