Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG851664807

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851664807

Diamond specifications and retailer prices

From €191 EUR
$214 USD
As of October 30, 2026
Save €611 EUR (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €802 EUR at With Clarity · As of October 30, 2026
View at With Clarity

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 LG851664807 or 851664807. Listed at 8 retailers as of October 30, 2026, with prices from €191 to €802, a €611 spread on the same certified stone. With Clarity lists it at €802. 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 angle35.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851664807
Dimensions10.90 × 5.62 × 3.54 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm5.62 mm1.23 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851664807
Side View
Table 59.0%Crown 35.4°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 63.0%

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: Oct 30
Current: €419 EUR|Low: €191 EUR|High: €802 EUR|Avg: €446 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
October 30, 2026
Retailer 2€191 EUR
Retailer 6€262 EUR
Retailer 4€284 EUR
Retailer 3€406 EUR
Retailer 1€419 EUR
Retailer 5€762 EUR
With Clarity€802 EUR

1 data point across 7 retailers

8 retailers€191 EUR to €802 EUR

A
Cheapest Retailer
-
€191 EUR
$214 USD
A
Retailer 2
-
€262 EUR
HK$2,300 HKD
View
A
Retailer 3
-
€284 EUR
£250 GBP
View
A
Retailer 4
-
€406 EUR
$455 USD
View
A
Retailer 5
-
€419 EUR
$470 USD
View
B
Retailer 6
-
€762 EUR
SGD 1,155 SGD
View
B
Retailer 7
-
€776 EUR
$870 USD
View
Most Expensive
B
With Clarity
851664807 · Oct 30
€802 EUR
$899 USD
View
7 more retailers have this diamond
Prices start from €191 EURSave up to €611 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
€191 EUR