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Marquise|Lab Grown|IGI

3.08ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG850607423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850607423

Diamond specifications and retailer prices

From £289 GBP
As of November 4, 2026
Save £2,341 GBP (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,630 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.08ct lab-grown marquise diamond

This 3.08ct 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 LG850607423 or 850607423. Listed at 20 retailers as of November 4, 2026, with prices from £289 to £2,630, a £2,341 spread on the same certified stone. Brilliant Earth lists it at £2,630. 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

3.08
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850607423
Dimensions15.32 × 7.70 × 4.53 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.32 mm7.70 mm3.08 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850607423
Side View
Table 61.0%Crown 36.4°Girdle: MED-STKPavilion 38°Culet: NoneDepth 58.8%

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 4
Current: £643 GBP|Low: £289 GBP|High: £2,597 GBP|Avg: £867 GBP|-0.7%
Retailer 1
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Retailer 19
November 5, 2026
Retailer 18£289 GBP
Retailer 15£324 GBP
Retailer 2£359 GBP
Retailer 5£398 GBP
Retailer 12£398 GBP
Retailer 3£467 GBP
Retailer 9£481 GBP
Retailer 4£641 GBP
Retailer 1£643 GBP
Retailer 13£763 GBP
Retailer 14£780 GBP
Retailer 19£784 GBP
Retailer 17£1,005 GBP
Retailer 6£1,152 GBP
Retailer 11£1,163 GBP
Retailer 8£1,179 GBP
Retailer 7£1,342 GBP
Retailer 16£1,399 GBP
Retailer 10£2,597 GBP

9 data points across 19 retailers

20 retailers£289 GBP to £2,630 GBP

A
Cheapest Retailer
-
£289 GBP
A
Retailer 2
-
£324 GBP
View
A
Retailer 3
-
£359 GBP
View
A
Retailer 4
-
£398 GBP
View
A
Retailer 5
-
£398 GBP
View
A
Retailer 6
-
£467 GBP
View
B+
Retailer 7
-
£481 GBP
View
A
Retailer 8
-
£641 GBP
View
A
Retailer 9
-
£643 GBP
View
A
Retailer 10
-
£763 GBP
View
A
Retailer 11
-
£780 GBP
View
A
Retailer 12
-
£784 GBP
View
B+
Retailer 13
-
£1,005 GBP
View
B+
Retailer 14
-
£1,152 GBP
View
B+
Retailer 15
-
£1,163 GBP
View
B+
Retailer 16
-
£1,179 GBP
View
B+
Retailer 17
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£1,342 GBP
View
B
Retailer 18
-
£1,399 GBP
View
B
Retailer 19
-
£2,597 GBP
View
Most Expensive
B
Brilliant Earth
22402125A · Nov 4
£2,630 GBP
$3,550 USD
View
19 more retailers have this diamond
Prices start from £289 GBPSave up to £2,341 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
3.08ct Marquise
£289 GBP