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Marquise|Lab Grown|IGI

1.20ct D VVS1 Marquise Lab Grown Diamond

VG • D/VVS1 • IGI LG836603479

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836603479

Diamond specifications and retailer prices

From £199 GBP
As of November 4, 2026
Save £916 GBP (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,115 GBP at MOH London · As of November 1, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG836603479 or 836603479. Listed at 24 retailers as of November 1, 2026, with prices from £199 to £1,115, a £916 spread on the same certified stone. MOH London lists it at £1,115. 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
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836603479
Dimensions10.79 × 5.54 × 3.52 mm
L/W Ratio1.95
Girdle conditionFaceted
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
10.79 mm5.54 mm1.20 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836603479
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.5%

Caratlytics Score

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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: £1,115 GBP|Low: £199 GBP|High: £1,127 GBP|Avg: £604 GBP|-0.1%
MOH London
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November 4, 2026
Retailer 18£199 GBP
Retailer 23£231 GBP
Retailer 10£266 GBP
Retailer 7£278 GBP
Retailer 2£281 GBP
Retailer 13£284 GBP
Retailer 22£348 GBP
Retailer 8£393 GBP
Retailer 15£450 GBP
Retailer 14£455 GBP
Retailer 16£461 GBP
Retailer 3£468 GBP
Retailer 9£479 GBP
Retailer 6£547 GBP
Retailer 5£605 GBP
Retailer 20£758 GBP
Retailer 19£793 GBP
Retailer 17£830 GBP
Retailer 12£833 GBP
Retailer 11£841 GBP
Retailer 4£919 GBP
Retailer 21£1,046 GBP
MOH London£1,115 GBP

14 data points across 23 retailers

24 retailers£199 GBP to £1,115 GBP

A
Cheapest Retailer
-
£199 GBP
A
Retailer 2
-
£231 GBP
View
A
Retailer 3
-
£266 GBP
View
Final sale: no returns
A
Retailer 4
-
£278 GBP
View
A
Retailer 5
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£281 GBP
View
A
Retailer 6
-
£284 GBP
View
A
Retailer 7
-
£348 GBP
View
B+
Retailer 8
-
£393 GBP
View
B+
Retailer 9
-
£450 GBP
View
Retailer 10
-
£455 GBP
View
Price last confirmed 10 days ago
B+
Retailer 11
-
£461 GBP
View
B+
Retailer 12
-
£468 GBP
View
B+
Retailer 13
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£479 GBP
View
B+
Retailer 14
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£547 GBP
View
B
Retailer 15
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£605 GBP
View
B
Retailer 16
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£700 GBP
View
B
Retailer 17
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£758 GBP
View
B
Retailer 18
-
£793 GBP
View
B
Retailer 19
-
£830 GBP
View
Retailer 20
-
£833 GBP
View
Price last confirmed 7 days ago
B
Retailer 21
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£841 GBP
View
B
Retailer 22
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£919 GBP
View
B
Retailer 23
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£1,046 GBP
View
Most Expensive
B
MOH London
LG836603479 · Nov 1
£1,115 GBP
View
23 more retailers have this diamond
Prices start from £199 GBPSave up to £916 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
£199 GBP