CaratHunter
Plans
Marquise|Lab Grown|IGI

3.00ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG844614689

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844614689

Diamond specifications and retailer prices

From £426 GBP
As of November 4, 2026
Save £809 GBP (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,235 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3ct lab-grown marquise diamond

This 3ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844614689 or 844614689. Listed at 7 retailers as of November 4, 2026, with prices from £426 to £1,235, a £809 spread on the same certified stone. MOH London lists it at £1,235. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.00
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844614689
Dimensions16.06 × 7.37 × 4.37 mm
L/W Ratio2.18
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.06 mm7.37 mm3.00 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844614689
Side View
Table 61.0%Crown 34.5°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 59.3%

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: £1,235 GBP|Low: £426 GBP|High: £1,240 GBP|Avg: £725 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6£426 GBP
Retailer 3£531 GBP
Retailer 2£563 GBP
Retailer 4£606 GBP
Retailer 5£738 GBP
Retailer 7£1,050 GBP
MOH London£1,235 GBP

17 data points across 7 retailers

7 retailers£426 GBP to £1,235 GBP

B+
Cheapest Retailer
-
£426 GBP
Retailer 2
-
£531 GBP
View
Price last confirmed 9 days ago
A
Retailer 3
-
£563 GBP
View
A
Retailer 4
-
£606 GBP
View
A
Retailer 5
-
£738 GBP
View
B+
Retailer 6
-
£1,050 GBP
View
Most Expensive
B+
MOH London
LG844614689 · Nov 5
£1,235 GBP
View
6 more retailers have this diamond
Prices start from £426 GBPSave up to £809 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
3.00ct Marquise
£426 GBP