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Marquise|Lab Grown|IGI

3.21ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG841610008

Certificate IGI LG841610008

Diamond specifications and retailer prices

From £329 GBP
$442 USD
As of November 1, 2026
Save £1,905 GBP (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,234 GBP at Frank Darling · As of November 1, 2026
View at Frank Darling

About this 3.21ct lab-grown marquise diamond

This 3.21ct 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 LG841610008 or 841610008. Listed at 5 retailers as of November 1, 2026, with prices from £329 to £2,234, a £1,905 spread on the same certified stone. Frank Darling lists it at £2,234. 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

3.21
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG841610008
Dimensions14.99 × 7.54 × 4.84 mm
L/W Ratio1.99
Top View
14.99 mm7.54 mm3.21 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841610008
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 64.2%

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: £2,234 GBP|Low: £329 GBP|High: £2,234 GBP|Avg: £1,277 GBP|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 3£329 GBP
Retailer 5£468 GBP
Retailer 2£1,206 GBP
Retailer 4£1,710 GBP
Frank Darling£2,234 GBP

5 data points across 5 retailers

5 retailers£329 GBP to £2,234 GBP

A
Cheapest Retailer
-
£329 GBP
$442 USD
Final sale: no returns
B+
Retailer 2
-
£468 GBP
$628 USD
View
B+
Retailer 3
-
£1,206 GBP
$1,618 USD
View
B
Retailer 4
-
£1,710 GBP
$2,295 USD
View
Most Expensive
B
Frank Darling
100759968602KD · Nov 1
£2,234 GBP
$2,998 USD
View
4 more retailers have this diamond
Prices start from £329 GBPSave up to £1,905 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
3.21ct Marquise
£329 GBP