CaratHunter
Plans
Marquise|Lab Grown|IGI

1.55ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG794663017

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG794663017

Diamond specifications and retailer prices

From £328 GBP
$440 USD
As of November 1, 2026
Save £1,302 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,630 GBP at Michael Trio · As of November 2, 2026
View at Michael Trio

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG794663017 or 794663017. Listed at 15 retailers as of November 1, 2026, with prices from £328 to £1,630, a £1,302 spread on the same certified stone. Michael Trio lists it at £1,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794663017
Dimensions12.37 × 5.97 × 3.66 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.37 mm5.97 mm1.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794663017
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.3%

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: £1,630 GBP|Low: £303 GBP|High: £1,630 GBP|Avg: £829 GBP|+20.1%
Michael Trio
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
November 3, 2026
Retailer 4£303 GBP
Retailer 12£328 GBP
Retailer 13£410 GBP
Retailer 6£551 GBP
Retailer 8£585 GBP
Retailer 2£613 GBP
Retailer 9£783 GBP
Retailer 11£812 GBP
Retailer 5£998 GBP
Retailer 7£1,019 GBP
Retailer 3£1,161 GBP
Retailer 14£1,208 GBP
Retailer 10£1,333 GBP
Michael Trio£1,630 GBP

36 data points across 14 retailers

15 retailers£328 GBP to £1,630 GBP

A
Cheapest Retailer
-
£328 GBP
$440 USD
A
Retailer 2
-
£410 GBP
$550 USD
View
A
Retailer 3
-
£551 GBP
$740 USD
View
A
Retailer 4
-
£585 GBP
ZAR 12,688 ZAR
View
A
Retailer 5
-
£613 GBP
View
B+
Retailer 6
-
£783 GBP
A$1,617 AUD
View
B
Retailer 7
-
£812 GBP
$1,090 USD
View
B
Retailer 8
-
£998 GBP
CA$1,859 CAD
View
B
Retailer 9
-
£1,019 GBP
$1,368 USD
View
B
Retailer 10
-
£1,030 GBP
$1,383 USD
View
Retailer 11
-
£1,145 GBP
$1,536 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
£1,161 GBP
$1,558 USD
View
B
Retailer 13
-
£1,208 GBP
$1,621 USD
View
B
Retailer 14
-
£1,333 GBP
View
Most Expensive
B
Michael Trio
7822892380 · Nov 2
£1,630 GBP
SGD 2,955 SGD
View
14 more retailers have this diamond
Prices start from £328 GBPSave up to £1,302 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
1.55ct Marquise
£328 GBP