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Marquise|Lab Grown|IGI

2.50ct G VVS1 Marquise Lab Grown Diamond

ID • G/VVS1 • IGI LG788642105

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG788642105

Diamond specifications and retailer prices

From £276 GBP
$370 USD
As of November 1, 2026
Save £1,878 GBP (87%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,154 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 2.5ct lab-grown marquise diamond

This 2.5ct lab-grown marquise sits in the two to three carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788642105 or 788642105. Listed at 5 retailers as of November 1, 2026, with prices from £276 to £2,154, a £1,878 spread on the same certified stone. Rare Carat lists it at £2,154. 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

2.50
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788642105
Dimensions14.05 × 7.01 × 4.45 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.05 mm7.01 mm2.50 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788642105
Side View
Table 58.0%Crown 37.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.5%

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: £2,154 GBP|Low: £276 GBP|High: £2,176 GBP|Avg: £1,055 GBP|-1.0%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 28, 2026
Retailer 2£276 GBP
Retailer 8£396 GBP
Retailer 12£432 GBP
Retailer 10£504 GBP
Retailer 11£579 GBP
Retailer 13£775 GBP
Retailer 9£794 GBP
Retailer 5£797 GBP
Retailer 6£1,026 GBP
Retailer 4£1,191 GBP
Retailer 7£2,113 GBP
Rare Carat£2,154 GBP
Retailer 3£2,169 GBP

9 data points across 13 retailers

5 retailers£276 GBP to £2,154 GBP

A
Cheapest Retailer
-
£276 GBP
$370 USD
Final sale: no returns
B+
Retailer 2
-
£396 GBP
$532 USD
View
B+
Retailer 3
-
£1,026 GBP
$1,377 USD
View
B
Retailer 4
-
£2,113 GBP
$2,835 USD
View
Most Expensive
B
Rare Carat
788642105 · Nov 1
£2,154 GBP
$2,890 USD
View
4 more retailers have this diamond
Prices start from £276 GBPSave up to £1,878 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
2.50ct Marquise
£276 GBP