Marquise|Lab Grown|IGI

1.23ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG842630575

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842630575

Diamond specifications and retailer prices

From £182 GBP
HK$1,900 HKD
As of October 30, 2026
12 retailers carry this diamond
Most expensive: £817 GBP at Reve Diamonds · As of October 23, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG842630575 or 842630575. Listed at 12 retailers as of October 30, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842630575
Dimensions11.01 × 5.75 × 3.37 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.01 mm5.75 mm1.23 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842630575
Side View
Table 60.0%Crown 34.1°Girdle: MediumPavilion 38.9°Culet: NoneDepth 58.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £335 GBP|Low: £141 GBP|High: £817 GBP|Avg: £394 GBP|+2.3%
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
Reve Diamonds
October 25, 2026
Retailer 2£141 GBP
Retailer 5£182 GBP
Retailer 13£197 GBP
Retailer 10£260 GBP
Retailer 7£265 GBP
Retailer 8£269 GBP
Retailer 3£280 GBP
Retailer 1£335 GBP
Retailer 11£478 GBP
Retailer 6£512 GBP
Retailer 14£515 GBP
Retailer 9£531 GBP
Retailer 4£544 GBP
Retailer 12£736 GBP
Reve Diamonds£817 GBP

11 data points across 15 retailers

12 retailers

A
Cheapest Retailer
-
£182 GBP
HK$1,900 HKD
Retailer 2
-
£197 GBP
View
Price last confirmed 16 days ago
Retailer 3
-
£265 GBP
ZAR 5,729 ZAR
View
Price last confirmed 10 days ago
Retailer 4
-
£269 GBP
View
Price last confirmed 10 days ago
Retailer 5
-
£280 GBP
$375 USD
View
Price last confirmed 9 days ago
Retailer 6
-
£335 GBP
$449 USD
View
Price last confirmed 7 days ago
Retailer 7
-
£478 GBP
$640 USD
View
Price last confirmed 11 days ago
Retailer 8
-
£512 GBP
SGD 927 SGD
View
Price last confirmed 9 days ago
Retailer 9
-
£531 GBP
$712 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£544 GBP
$729 USD
View
Price last confirmed 9 days ago
Retailer 11
-
£736 GBP
View
Price last confirmed 14 days ago
Most Expensive
Reve Diamonds
87B090C9D · Oct 23
£817 GBP
$1,095 USD
View
Price last confirmed 9 days ago
11 more retailers have this diamond
Prices start from £182 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
£182 GBP