CaratHunter
Plans
Marquise|Lab Grown|IGI

3.23ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG844621190

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844621190

Diamond specifications and retailer prices

From £312 GBP
$419 USD
As of November 1, 2026
Save £1,946 GBP (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,258 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.23ct lab-grown marquise diamond

This 3.23ct 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 LG844621190 or 844621190. Listed at 4 retailers as of November 1, 2026, with prices from £312 to £2,258, a £1,946 spread on the same certified stone. Brilliant Earth lists it at £2,258. 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

3.23
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621190
Dimensions14.58 × 7.72 × 4.98 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.58 mm7.72 mm3.23 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621190
Side View
Table 63.0%Crown 36.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 64.5%

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: £2,258 GBP|Low: £312 GBP|High: £2,258 GBP|Avg: £1,079 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4£312 GBP
Retailer 2£646 GBP
Retailer 3£1,803 GBP
Brilliant Earth£2,258 GBP

21 data points across 4 retailers

4 retailers£312 GBP to £2,258 GBP

A
Cheapest Retailer
-
£312 GBP
$419 USD
Final sale: no returns
A
Retailer 2
-
£646 GBP
View
B
Retailer 3
-
£1,803 GBP
$2,420 USD
View
Most Expensive
B
Brilliant Earth
21815463A · Nov 2
£2,258 GBP
$3,030 USD
View
3 more retailers have this diamond
Prices start from £312 GBPSave up to £1,946 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
3.23ct Marquise
£312 GBP