CaratHunter
Plans
Marquise|Lab Grown|IGI

1.23ct F VVS2 Marquise Lab Grown Diamond

VG • F/VVS2 • IGI LG825655360

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825655360

Diamond specifications and retailer prices

From £172 GBP
As of November 4, 2026
Save £596 GBP (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £768 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG825655360 or 825655360. Listed at 16 retailers as of November 2, 2026, with prices from £172 to £768, a £596 spread on the same certified stone. MOH London lists it at £768. 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

1.23
Carat
F
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655360
Dimensions11.85 × 5.43 × 3.43 mm
L/W Ratio2.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.85 mm5.43 mm1.23 ctF / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655360
Side View
Table 58.0%Crown 34.3°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 63.2%

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 4
Current: £768 GBP|Low: £172 GBP|High: £779 GBP|Avg: £421 GBP|-1.5%
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
November 5, 2026
Retailer 3£172 GBP
Retailer 12£192 GBP
Retailer 2£212 GBP
Retailer 8£259 GBP
Retailer 10£331 GBP
Retailer 6£350 GBP
Retailer 5£362 GBP
Retailer 7£469 GBP
Retailer 11£584 GBP
Retailer 13£619 GBP
Retailer 9£621 GBP
Retailer 4£655 GBP
MOH London£768 GBP

17 data points across 13 retailers

16 retailers£172 GBP to £768 GBP

A
Cheapest Retailer
-
£172 GBP
Final sale: no returns
Retailer 2
-
£192 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£192 GBP
View
A
Retailer 4
-
£212 GBP
View
B+
Retailer 5
-
£259 GBP
View
A
Retailer 6
-
£331 GBP
View
A
Retailer 7
-
£350 GBP
View
B+
Retailer 8
-
£362 GBP
View
B+
Retailer 9
-
£469 GBP
View
B
Retailer 10
-
£528 GBP
View
Retailer 11
-
£584 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
£617 GBP
View
B
Retailer 13
-
£619 GBP
View
B
Retailer 14
-
£621 GBP
View
B
Retailer 15
-
£655 GBP
View
Most Expensive
B
MOH London
LG825655360 · Nov 2
£768 GBP
View
15 more retailers have this diamond
Prices start from £172 GBPSave up to £596 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
1.23ct Marquise
£172 GBP