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Marquise|Lab Grown|IGI

3.10ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG826633377

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826633377

Diamond specifications and retailer prices

From £318 GBP
$427 USD
As of November 1, 2026
Save £1,839 GBP (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,158 GBP at Frank Darling · As of November 3, 2026
View at Frank Darling

About this 3.1ct lab-grown marquise diamond

This 3.1ct 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 LG826633377 or 826633377. Listed at 6 retailers as of November 1, 2026, with prices from £318 to £2,158, a £1,839 spread on the same certified stone. Frank Darling lists it at £2,158. 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

3.10
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826633377
Dimensions14.95 × 7.64 × 4.79 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.95 mm7.64 mm3.10 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826633377
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: £2,158 GBP|Low: £318 GBP|High: £2,158 GBP|Avg: £1,012 GBP|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4£318 GBP
Retailer 6£456 GBP
Retailer 3£630 GBP
Retailer 7£643 GBP
Retailer 2£1,165 GBP
Retailer 5£1,621 GBP
Frank Darling£2,158 GBP

20 data points across 7 retailers

6 retailers£318 GBP to £2,158 GBP

A
Cheapest Retailer
-
£318 GBP
$427 USD
Final sale: no returns
B+
Retailer 2
-
£456 GBP
$612 USD
View
A
Retailer 3
-
£566 GBP
$760 USD
View
B+
Retailer 4
-
£1,165 GBP
$1,563 USD
View
B+
Retailer 5
-
£1,621 GBP
$2,175 USD
View
Most Expensive
B
Frank Darling
100756404064KD · Nov 3
£2,158 GBP
$2,895 USD
View
5 more retailers have this diamond
Prices start from £318 GBPSave up to £1,839 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
3.10ct Marquise
£318 GBP