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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG845651268

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845651268

Diamond specifications and retailer prices

From €259 EUR
£228 GBP
As of November 2, 2026
Save €490 EUR (65%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €749 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845651268 or 845651268. Listed at 9 retailers as of November 2, 2026, with prices from €259 to €749, a €490 spread on the same certified stone. Brilliant Earth lists it at €749. 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845651268
Dimensions10.64 × 5.61 × 3.59 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.64 mm5.61 mm1.23 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845651268
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.0%

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: Nov 2
Current: €749 EUR|Low: €259 EUR|High: €749 EUR|Avg: €529 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 6€259 EUR
Retailer 7€373 EUR
Retailer 9€376 EUR
Retailer 2€395 EUR
Retailer 4€402 EUR
Retailer 5€527 EUR
Retailer 3€697 EUR
Retailer 8€743 EUR
Brilliant Earth€749 EUR

4 data points across 9 retailers

9 retailers€259 EUR to €749 EUR

A
Cheapest Retailer
-
€259 EUR
£228 GBP
A
Retailer 2
-
€373 EUR
ZAR 6,763 ZAR
View
A
Retailer 3
-
€376 EUR
$422 USD
View
A
Retailer 4
-
€395 EUR
£349 GBP
View
A
Retailer 5
-
€402 EUR
$451 USD
View
B+
Retailer 6
-
€527 EUR
A$910 AUD
View
B+
Retailer 7
-
€697 EUR
$782 USD
View
B
Retailer 8
-
€743 EUR
$833 USD
View
Most Expensive
B
Brilliant Earth
22394845A · Nov 2
€749 EUR
$840 USD
View
8 more retailers have this diamond
Prices start from €259 EURSave up to €490 EUR

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
€259 EUR