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Marquise|Lab Grown|IGI

3.68ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG812641511

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812641511

Diamond specifications and retailer prices

From £424 GBP
$569 USD
As of October 28, 2026
Save £3,928 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,352 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.68ct lab-grown marquise diamond

This 3.68ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812641511 or 812641511. Listed at 16 retailers as of October 28, 2026, with prices from £424 to £4,352, a £3,928 spread on the same certified stone. Brilliant Earth lists it at £4,352. 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

3.68
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812641511
Dimensions16.50 × 7.95 × 4.99 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.50 mm7.95 mm3.68 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812641511
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £4,352 GBP|Low: £563 GBP|High: £4,516 GBP|Avg: £1,728 GBP|-3.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 7£563 GBP
Retailer 14£609 GBP
Retailer 5£621 GBP
Retailer 8£622 GBP
Retailer 6£742 GBP
Retailer 10£753 GBP
Retailer 13£832 GBP
Retailer 4£1,158 GBP
Retailer 11£1,212 GBP
Retailer 2£1,886 GBP
Retailer 9£2,264 GBP
Retailer 3£2,491 GBP
Retailer 12£3,368 GBP
Brilliant Earth£4,352 GBP

15 data points across 14 retailers

16 retailers£424 GBP to £4,352 GBP

Retailer 1
-
£424 GBP
$569 USD
Price last confirmed 9 days ago
A
Retailer 2
-
£424 GBP
$569 USD
View
A
Retailer 3
-
£563 GBP
$755 USD
View
A
Retailer 4
-
£609 GBP
$817 USD
View
B+
Retailer 5
-
£621 GBP
$834 USD
View
A
Retailer 6
-
£622 GBP
View
A
Retailer 7
-
£753 GBP
€963 EUR
View
A
Retailer 8
-
£832 GBP
$1,117 USD
View
Retailer 9
-
£1,158 GBP
$1,554 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£1,212 GBP
$1,627 USD
View
Retailer 11
-
£1,364 GBP
$1,830 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£1,886 GBP
A$3,894 AUD
View
B
Retailer 13
-
£2,264 GBP
View
B
Retailer 14
-
£2,491 GBP
$3,343 USD
View
B
Retailer 15
-
£3,368 GBP
$4,520 USD
View
Most Expensive
B
Brilliant Earth
22267696A · Oct 30
£4,352 GBP
$5,840 USD
View
15 more retailers have this diamond
Prices start from £424 GBPSave up to £3,928 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
3.68ct Marquise
£424 GBP