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Marquise|Lab Grown|IGI

3.10ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG843683215

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843683215

Diamond specifications and retailer prices

From £440 GBP
As of November 4, 2026
Save £2,294 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,734 GBP at Brilliant Earth · As of November 4, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843683215 or 843683215. Listed at 20 retailers as of November 4, 2026, with prices from £440 to £2,734, a £2,294 spread on the same certified stone. Brilliant Earth lists it at £2,734. 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
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843683215
Dimensions15.66 × 7.44 × 4.73 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.66 mm7.44 mm3.10 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843683215
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 63.6%

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: £2,734 GBP|Low: £440 GBP|High: £2,734 GBP|Avg: £1,215 GBP
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 10£440 GBP
Retailer 9£488 GBP
Retailer 2£553 GBP
Retailer 8£591 GBP
Retailer 19£654 GBP
Retailer 15£750 GBP
Retailer 3£813 GBP
Retailer 6£1,007 GBP
Retailer 13£1,034 GBP
Retailer 16£1,060 GBP
Retailer 18£1,071 GBP
Retailer 4£1,084 GBP
Retailer 11£1,586 GBP
Retailer 12£1,602 GBP
Retailer 5£1,669 GBP
Retailer 17£1,742 GBP
Retailer 7£1,811 GBP
Retailer 14£2,032 GBP
Retailer 20£2,207 GBP
Brilliant Earth£2,734 GBP

24 data points across 20 retailers

20 retailers£440 GBP to £2,734 GBP

A
Cheapest Retailer
-
£440 GBP
Final sale: no returns
Retailer 2
-
£488 GBP
View
Price last confirmed 21 days ago
A
Retailer 3
-
£553 GBP
View
A
Retailer 4
-
£591 GBP
View
B+
Retailer 5
-
£654 GBP
View
A
Retailer 6
-
£750 GBP
View
Retailer 7
-
£813 GBP
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£1,007 GBP
View
A
Retailer 9
-
£1,034 GBP
View
B+
Retailer 10
-
£1,060 GBP
View
B+
Retailer 11
-
£1,071 GBP
View
B+
Retailer 12
-
£1,084 GBP
View
B+
Retailer 13
-
£1,586 GBP
View
B+
Retailer 14
-
£1,602 GBP
View
B
Retailer 15
-
£1,669 GBP
View
B
Retailer 16
-
£1,742 GBP
View
B
Retailer 17
-
£1,811 GBP
View
B
Retailer 18
-
£2,032 GBP
View
Retailer 19
-
£2,207 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21828224A · Nov 4
£2,734 GBP
$3,680 USD
View
19 more retailers have this diamond
Prices start from £440 GBPSave up to £2,294 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
£440 GBP