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Marquise|Lab Grown|IGI

3.10ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG755508873

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG755508873

Diamond specifications and retailer prices

From £397 GBP
$533 USD
As of November 2, 2026
Save £3,224 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,622 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 LG755508873 or 755508873. Listed at 18 retailers as of November 2, 2026, with prices from £397 to £3,622, a £3,224 spread on the same certified stone. Brilliant Earth lists it at £3,622. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG755508873
Dimensions15.41 × 7.60 × 4.72 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.41 mm7.60 mm3.10 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG755508873
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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 2
Current: £3,622 GBP|Low: £382 GBP|High: £3,733 GBP|Avg: £1,113 GBP|-2.8%
Brilliant Earth
Retailer 2
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November 2, 2026
Retailer 20£397 GBP
Retailer 5£445 GBP
Retailer 6£493 GBP
Retailer 21£493 GBP
Retailer 13£549 GBP
Retailer 17£592 GBP
Retailer 11£631 GBP
Retailer 10£654 GBP
Retailer 8£657 GBP
Retailer 7£759 GBP
Retailer 9£835 GBP
Retailer 15£1,041 GBP
Retailer 2£1,070 GBP
Retailer 18£1,272 GBP
Retailer 3£1,297 GBP
Retailer 14£1,331 GBP
Retailer 4£1,431 GBP
Retailer 19£1,587 GBP
Retailer 12£1,727 GBP
Retailer 16£2,069 GBP
Brilliant Earth£3,622 GBP

38 data points across 21 retailers

18 retailers£397 GBP to £3,622 GBP

A
Cheapest Retailer
-
£397 GBP
$533 USD
A
Retailer 2
-
£445 GBP
$597 USD
View
Retailer 3
-
£493 GBP
$661 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
£493 GBP
$661 USD
View
A
Retailer 5
-
£549 GBP
View
A
Retailer 6
-
£592 GBP
$795 USD
View
B+
Retailer 7
-
£657 GBP
$882 USD
View
A
Retailer 8
-
£759 GBP
$1,018 USD
View
A
Retailer 9
-
£835 GBP
$1,120 USD
View
B+
Retailer 10
-
£1,041 GBP
A$2,149 AUD
View
A
Retailer 11
-
£1,070 GBP
ZAR 23,196 ZAR
View
B+
Retailer 12
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£1,272 GBP
$1,707 USD
View
B+
Retailer 13
-
£1,297 GBP
$1,740 USD
View
B+
Retailer 14
-
£1,431 GBP
View
B+
Retailer 15
-
£1,587 GBP
$2,130 USD
View
Retailer 16
-
£1,725 GBP
$2,315 USD
View
Price last confirmed 29 days ago
B
Retailer 17
-
£2,069 GBP
View
Most Expensive
B
Brilliant Earth
16858560A · Nov 2
£3,622 GBP
$4,860 USD
View
17 more retailers have this diamond
Prices start from £397 GBPSave up to £3,224 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
£397 GBP