CaratHunter
Plans
Marquise|Lab Grown|IGI

6.09ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG837617455

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837617455

Diamond specifications and retailer prices

From £973 GBP
HK$10,200 HKD
As of November 1, 2026
Save £2,951 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,923 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 6.09ct lab-grown marquise diamond

This 6.09ct lab-grown marquise sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837617455 or 837617455. Listed at 11 retailers as of October 28, 2026, with prices from £973 to £3,923, a £2,951 spread on the same certified stone. Rare Carat lists it at £3,923. 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

6.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837617455
Dimensions18.59 × 9.32 × 6.00 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
18.59 mm9.32 mm6.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837617455
Side View
Table 58.0%Crown 35.9°Girdle: STK-THKPavilion 40°Culet: NoneDepth 64.4%

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: £3,923 GBP|Low: £954 GBP|High: £3,942 GBP|Avg: £2,104 GBP|-0.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£973 GBP
Retailer 9£1,130 GBP
Retailer 2£1,274 GBP
Retailer 10£1,323 GBP
Retailer 6£1,401 GBP
Retailer 11£1,890 GBP
Retailer 5£2,817 GBP
Retailer 3£2,876 GBP
Retailer 7£3,037 GBP
Retailer 4£3,277 GBP
Rare Carat£3,923 GBP

41 data points across 11 retailers

11 retailers£973 GBP to £3,923 GBP

A
Cheapest Retailer
-
£973 GBP
HK$10,200 HKD
A
Retailer 2
-
£1,130 GBP
$1,516 USD
View
A
Retailer 3
-
£1,274 GBP
View
B+
Retailer 4
-
£1,323 GBP
$1,775 USD
View
A
Retailer 5
-
£1,401 GBP
€1,790 EUR
View
B+
Retailer 6
-
£1,890 GBP
$2,536 USD
View
B
Retailer 7
-
£2,817 GBP
View
B
Retailer 8
-
£2,876 GBP
$3,860 USD
View
B
Retailer 9
-
£3,037 GBP
$4,076 USD
View
B
Retailer 10
-
£3,277 GBP
A$6,765 AUD
View
Most Expensive
B
Rare Carat
KI4556174KF837 · Oct 28
£3,923 GBP
$5,265 USD
View
10 more retailers have this diamond
Prices start from £973 GBPSave up to £2,951 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
6.09ct Marquise
£973 GBP