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Marquise|Lab Grown|IGI

1.23ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG818689620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818689620

Diamond specifications and retailer prices

From £143 GBP
$192 USD
As of November 2, 2026
Save £728 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £871 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818689620 or 818689620. Listed at 19 retailers as of November 1, 2026, with prices from £143 to £871, a £728 spread on the same certified stone. Reve Diamonds lists it at £871. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818689620
Dimensions11.81 × 5.36 × 3.32 mm
L/W Ratio2.20
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.81 mm5.36 mm1.23 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818689620
Side View
Table 57.0%Crown 33.8°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 61.9%

Caratlytics Score

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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: Nov 2
Current: £227 GBP|Low: £137 GBP|High: £871 GBP|Avg: £395 GBP|-1.3%
Retailer 1
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
Reve Diamonds
November 2, 2026
Retailer 4£143 GBP
Retailer 3£160 GBP
Retailer 7£166 GBP
Retailer 2£178 GBP
Retailer 5£178 GBP
Retailer 1£227 GBP
Retailer 13£239 GBP
Retailer 15£301 GBP
Retailer 9£323 GBP
Retailer 12£387 GBP
Retailer 8£417 GBP
Retailer 10£470 GBP
Retailer 14£496 GBP
Retailer 6£571 GBP
Retailer 16£572 GBP
Retailer 11£830 GBP
Reve Diamonds£871 GBP

43 data points across 17 retailers

19 retailers£143 GBP to £871 GBP

A
Cheapest Retailer
-
£143 GBP
$192 USD
A
Retailer 2
-
£160 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$223 USD
View
A
Retailer 4
-
£178 GBP
$238 USD
View
Retailer 5
-
£178 GBP
$238 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£227 GBP
View
B+
Retailer 7
-
£239 GBP
$320 USD
View
A
Retailer 8
-
£301 GBP
€384 EUR
View
A
Retailer 9
-
£323 GBP
View
A
Retailer 10
-
£345 GBP
$462 USD
View
B+
Retailer 11
-
£387 GBP
A$798 AUD
View
B+
Retailer 12
-
£417 GBP
$559 USD
View
B+
Retailer 13
-
£470 GBP
$630 USD
View
B+
Retailer 14
-
£496 GBP
A$1,023 AUD
View
B+
Retailer 15
-
£571 GBP
$765 USD
View
Retailer 16
-
£572 GBP
$767 USD
View
Price last confirmed 7 days ago
B+
Retailer 17
-
£611 GBP
$819 USD
View
B
Retailer 18
-
£830 GBP
View
Most Expensive
B
Reve Diamonds
7087862CC · Nov 1
£871 GBP
$1,168 USD
View
18 more retailers have this diamond
Prices start from £143 GBPSave up to £728 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
1.23ct Marquise
£143 GBP