CaratHunter
Plans
Marquise|Lab Grown|IGI

4.09ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG848668998

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG848668998

Diamond specifications and retailer prices

From £735 GBP
$985 USD
As of November 1, 2026
Save £1,193 GBP (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,929 GBP at With Clarity · As of November 2, 2026
View at With Clarity

About this 4.09ct lab-grown marquise diamond

This 4.09ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848668998 or 848668998. Listed at 4 retailers as of November 1, 2026, with prices from £735 to £1,929, a £1,193 spread on the same certified stone. With Clarity lists it at £1,929. 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

4.09
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848668998
Dimensions16.94 × 8.49 × 5.17 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.94 mm8.49 mm4.09 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848668998
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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: £1,564 GBP|Low: £650 GBP|High: £1,929 GBP|Avg: £1,300 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
With Clarity
November 1, 2026
Retailer 2£650 GBP
Retailer 3£735 GBP
Retailer 1£1,564 GBP
With Clarity£1,929 GBP

5 data points across 4 retailers

4 retailers£735 GBP to £1,929 GBP

Retailer 1
-
£650 GBP
€829 EUR
Price last confirmed 7 days ago
A
Retailer 2
-
£735 GBP
$985 USD
View
B+
Retailer 3
-
£1,564 GBP
View
Most Expensive
B+
With Clarity
848668998 · Nov 2
£1,929 GBP
$2,584 USD
View
3 more retailers have this diamond
Prices start from £735 GBPSave up to £1,193 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
4.09ct Marquise
£735 GBP