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Marquise|Lab Grown|IGI

1.20ct D VVS1 Marquise Lab Grown Diamond

ID • D/VVS1 • IGI LG669418991

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG669418991

Diamond specifications and retailer prices

From £198 GBP
As of November 4, 2026
Save £778 GBP (80%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £976 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG669418991 or 669418991. Listed at 30 retailers as of November 4, 2026, with prices from £198 to £976, a £778 spread on the same certified stone. Reve Diamonds lists it at £976. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669418991
Dimensions11.49 × 5.48 × 3.32 mm
L/W Ratio2.10
Girdle conditionFaceted
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
11.49 mm5.48 mm1.20 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669418991
Side View
Table 59.0%Crown 33°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £411 GBP|Low: £177 GBP|High: £1,104 GBP|Avg: £562 GBP|-15.9%
Retailer 1
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Reve Diamonds
November 4, 2026
Retailer 9£177 GBP
Retailer 12£198 GBP
Retailer 6£219 GBP
Retailer 5£256 GBP
Retailer 4£311 GBP
Retailer 20£367 GBP
Retailer 17£379 GBP
Retailer 3£396 GBP
Retailer 1£411 GBP
Retailer 7£433 GBP
Retailer 11£481 GBP
Retailer 21£509 GBP
Retailer 16£538 GBP
Retailer 2£708 GBP
Retailer 8£744 GBP
Retailer 13£744 GBP
Retailer 15£807 GBP
Retailer 22£807 GBP
Retailer 14£816 GBP
Retailer 19£830 GBP
Retailer 18£879 GBP
Retailer 10£901 GBP
Reve Diamonds£976 GBP

35 data points across 23 retailers

30 retailers£198 GBP to £976 GBP

Retailer 1
-
£177 GBP
Price last confirmed 27 days ago
A
Retailer 2
-
£198 GBP
View
Final sale: no returns
Retailer 3
-
£219 GBP
View
Price last confirmed 27 days ago
Retailer 4
-
£219 GBP
View
Price last confirmed 25 days ago
Retailer 5
-
£224 GBP
View
Price last confirmed 35 days ago
A
Retailer 6
-
£256 GBP
View
Retailer 7
-
£260 GBP
View
Price last confirmed 36 days ago
Retailer 8
-
£275 GBP
View
Price last confirmed 36 days ago
A
Retailer 9
-
£311 GBP
View
A
Retailer 10
-
£367 GBP
View
A
Retailer 11
-
£379 GBP
View
B+
Retailer 12
-
£396 GBP
View
A
Retailer 13
-
£411 GBP
View
B+
Retailer 14
-
£433 GBP
View
B+
Retailer 15
-
£481 GBP
View
B+
Retailer 16
-
£509 GBP
View
B+
Retailer 17
-
£538 GBP
View
B
Retailer 18
-
£706 GBP
View
Retailer 19
-
£706 GBP
View
Price last confirmed 25 days ago
B
Retailer 20
-
£708 GBP
View
B
Retailer 21
-
£744 GBP
View
B
Retailer 22
-
£744 GBP
View
B
Retailer 23
-
£807 GBP
View
B
Retailer 24
-
£807 GBP
View
Retailer 25
-
£816 GBP
View
Price last confirmed 27 days ago
B
Retailer 26
-
£830 GBP
View
B
Retailer 27
-
£879 GBP
View
Retailer 28
-
£894 GBP
View
Price last confirmed 35 days ago
B
Retailer 29
-
£901 GBP
View
Most Expensive
B
Reve Diamonds
1C818025C · Nov 4
£976 GBP
$1,318 USD
View
29 more retailers have this diamond
Prices start from £198 GBPSave up to £778 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 Marquise
£198 GBP