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Marquise|Lab Grown|IGI

1.20ct D VVS1 Marquise Lab Grown Diamond

ID • D/VVS1 • IGI LG844675804

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844675804

Diamond specifications and retailer prices

From £152 GBP
As of November 4, 2026
Save £656 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £807 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

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 LG844675804 or 844675804. Listed at 21 retailers as of November 1, 2026, with prices from £152 to £807, a £656 spread on the same certified stone. Rare Carat lists it at £807. 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 angle38°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844675804
Dimensions10.74 × 5.56 × 3.42 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.74 mm5.56 mm1.20 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844675804
Side View
Table 63.0%Crown 38°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A+
Exceptional
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 4
Current: £807 GBP|Low: £152 GBP|High: £807 GBP|Avg: £442 GBP
Rare Carat
Retailer 2
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November 4, 2026
Retailer 15£152 GBP
Retailer 13£169 GBP
Retailer 21£176 GBP
Retailer 5£189 GBP
Retailer 14£197 GBP
Retailer 2£213 GBP
Retailer 20£256 GBP
Retailer 10£315 GBP
Retailer 6£328 GBP
Retailer 3£344 GBP
Retailer 8£424 GBP
Retailer 7£426 GBP
Retailer 11£473 GBP
Retailer 17£604 GBP
Retailer 18£607 GBP
Retailer 19£611 GBP
Retailer 4£643 GBP
Retailer 16£644 GBP
Retailer 9£774 GBP
Retailer 12£789 GBP
Rare Carat£807 GBP

13 data points across 21 retailers

21 retailers£152 GBP to £807 GBP

A+
Cheapest Retailer
-
£152 GBP
A
Retailer 2
-
£169 GBP
View
Final sale: no returns
A
Retailer 3
-
£176 GBP
View
A
Retailer 4
-
£189 GBP
View
Retailer 5
-
£197 GBP
View
Price last confirmed 10 days ago
A
Retailer 6
-
£213 GBP
View
B+
Retailer 7
-
£256 GBP
View
Retailer 8
-
£315 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£328 GBP
View
A
Retailer 10
-
£344 GBP
View
A
Retailer 11
-
£424 GBP
View
A
Retailer 12
-
£426 GBP
View
Retailer 13
-
£473 GBP
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£604 GBP
View
B+
Retailer 15
-
£607 GBP
View
B+
Retailer 16
-
£611 GBP
View
B+
Retailer 17
-
£643 GBP
View
B+
Retailer 18
-
£644 GBP
View
B
Retailer 19
-
£774 GBP
View
Retailer 20
-
£789 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Rare Carat
CN334-47BA · Nov 1
£807 GBP
$1,090 USD
View
20 more retailers have this diamond
Prices start from £152 GBPSave up to £656 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
£152 GBP