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Marquise|Lab Grown|IGI

3.50ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG817664077

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817664077

Diamond specifications and retailer prices

From £375 GBP
$503 USD
As of November 2, 2026
Save £1,655 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,030 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.5ct lab-grown marquise diamond

This 3.5ct 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 LG817664077 or 817664077. Listed at 16 retailers as of October 28, 2026, with prices from £375 to £2,030, a £1,655 spread on the same certified stone. Rare Carat lists it at £2,030. 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

3.50
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817664077
Dimensions15.47 × 8.21 × 4.84 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.47 mm8.21 mm3.50 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817664077
Side View
Table 64.0%Crown 33.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.0%

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 2
Current: £2,030 GBP|Low: £360 GBP|High: £2,064 GBP|Avg: £1,022 GBP|-1.6%
Rare Carat
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 14£375 GBP
Retailer 13£421 GBP
Retailer 15£466 GBP
Retailer 16£466 GBP
Retailer 2£558 GBP
Retailer 11£571 GBP
Retailer 5£725 GBP
Retailer 6£747 GBP
Retailer 9£769 GBP
Retailer 8£970 GBP
Retailer 12£1,202 GBP
Retailer 3£1,225 GBP
Retailer 7£1,517 GBP
Retailer 4£1,728 GBP
Retailer 10£1,945 GBP
Rare Carat£2,030 GBP

42 data points across 16 retailers

16 retailers£375 GBP to £2,030 GBP

A
Cheapest Retailer
-
£375 GBP
$503 USD
A
Retailer 2
-
£421 GBP
$564 USD
View
A
Retailer 3
-
£466 GBP
$624 USD
View
Retailer 4
-
£466 GBP
$624 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
£558 GBP
View
A
Retailer 6
-
£571 GBP
$765 USD
View
B+
Retailer 7
-
£725 GBP
$971 USD
View
A
Retailer 8
-
£747 GBP
$1,001 USD
View
A
Retailer 9
-
£769 GBP
View
A
Retailer 10
-
£970 GBP
$1,300 USD
View
B+
Retailer 11
-
£1,202 GBP
$1,611 USD
View
B+
Retailer 12
-
£1,225 GBP
$1,642 USD
View
Retailer 13
-
£1,517 GBP
$2,033 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
£1,728 GBP
$2,315 USD
View
B
Retailer 15
-
£1,945 GBP
View
Most Expensive
B+
Rare Carat
TDS4-12A_l_817664077 · Oct 28
£2,030 GBP
$2,720 USD
View
15 more retailers have this diamond
Prices start from £375 GBPSave up to £1,655 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
3.50ct Marquise
£375 GBP