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Marquise|Lab Grown|IGI

3.03ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG851681219

Certificate IGI LG851681219

Diamond specifications and retailer prices

From £360 GBP
As of November 1, 2026
Save £1,028 GBP (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,388 GBP at With Clarity · As of November 2, 2026
View at With Clarity

About this 3.03ct lab-grown marquise diamond

This 3.03ct 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 LG851681219 or 851681219. Listed at 9 retailers as of November 1, 2026, with prices from £360 to £1,388, a £1,028 spread on the same certified stone. With Clarity lists it at £1,388. 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

3.03
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG851681219
Dimensions15.26 × 7.42 × 4.51 mm
L/W Ratio2.06
Top View
15.26 mm7.42 mm3.03 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851681219
Side View
Table 67.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 60.8%

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 1
Current: £751 GBP|Low: £360 GBP|High: £1,388 GBP|Avg: £829 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
November 2, 2026
Retailer 5£360 GBP
Retailer 8£430 GBP
Retailer 3£570 GBP
Retailer 7£748 GBP
Retailer 1£751 GBP
Retailer 6£1,038 GBP
Retailer 4£1,059 GBP
Retailer 2£1,249 GBP
With Clarity£1,388 GBP

4 data points across 9 retailers

9 retailers£360 GBP to £1,388 GBP

A
Cheapest Retailer
-
£360 GBP
B+
Retailer 2
-
£430 GBP
View
A
Retailer 3
-
£570 GBP
View
A
Retailer 4
-
£748 GBP
View
A
Retailer 5
-
£751 GBP
View
B+
Retailer 6
-
£1,038 GBP
View
B+
Retailer 7
-
£1,059 GBP
View
B+
Retailer 8
-
£1,249 GBP
View
Most Expensive
B
With Clarity
851681219 · Nov 2
£1,388 GBP
$1,874 USD
View
8 more retailers have this diamond
Prices start from £360 GBPSave up to £1,028 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
3.03ct Marquise
£360 GBP