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Marquise|Lab Grown|GCAL

1.21ct D IF Marquise Lab Grown Diamond

EX • D/IF • GCAL 361136039

Shape and cutting style on the report: Marquise brilliant

Certificate GCAL 361136039

Diamond specifications and retailer prices

From £519 GBP
As of November 3, 2026
Save £2,055 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,574 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 361136039. Listed at 17 retailers as of November 3, 2026, with prices from £519 to £2,574, a £2,055 spread on the same certified stone. MOH London lists it at £2,574. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 361136039
Dimensions11.00 × 5.56 × 3.50 mm
L/W Ratio1.98
Culet sizeNone
Top View
11.00 mm5.56 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 361136039
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £2,574 GBP|Low: £519 GBP|High: £4,526 GBP|Avg: £1,627 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 4, 2026
Retailer 15£519 GBP
Retailer 2£536 GBP
Retailer 11£584 GBP
Retailer 13£601 GBP
Retailer 14£622 GBP
Retailer 8£891 GBP
Retailer 16£1,154 GBP
Retailer 17£1,207 GBP
Retailer 4£1,600 GBP
Retailer 7£1,742 GBP
Retailer 3£1,859 GBP
Retailer 5£1,859 GBP
Retailer 10£1,930 GBP
Retailer 9£2,082 GBP
Retailer 12£2,453 GBP
MOH London£2,574 GBP
Retailer 6£4,526 GBP

27 data points across 17 retailers

17 retailers£519 GBP to £2,574 GBP

A
Cheapest Retailer
-
£519 GBP
A
Retailer 2
-
£536 GBP
View
A
Retailer 3
-
£584 GBP
View
A
Retailer 4
-
£601 GBP
View
Final sale: no returns
B+
Retailer 5
-
£622 GBP
View
B+
Retailer 6
-
£891 GBP
View
B+
Retailer 7
-
£1,154 GBP
View
B
Retailer 8
-
£1,207 GBP
View
B
Retailer 9
-
£1,600 GBP
View
B
Retailer 10
-
£1,742 GBP
View
B
Retailer 11
-
£1,859 GBP
View
B
Retailer 12
-
£1,859 GBP
View
B
Retailer 13
-
£1,930 GBP
View
B
Retailer 14
-
£2,082 GBP
View
B
Retailer 15
-
£2,453 GBP
View
Most Expensive
B
MOH London
361136039 · Nov 3
£2,574 GBP
View
15 more retailers have this diamond
Prices start from £519 GBPSave up to £2,055 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
1.21ct Marquise
£519 GBP