CaratHunter
Plans
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 $214 USD
As of November 2, 2026
Save $685 USD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $899 USD at With Clarity · As of November 3, 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 11 retailers as of November 2, 2026, with prices from $214 to $899, a $685 spread on the same certified stone. With Clarity lists it at $899. 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: Nov 2
Current: $648 USD|Low: $214 USD|High: $899 USD|Avg: $534 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 2, 2026
Retailer 6$214 USD
Retailer 9$294 USD
Retailer 3$317 USD
Retailer 7$455 USD
Retailer 5$470 USD
Retailer 1$648 USD
Retailer 4$665 USD
Retailer 8$855 USD
Retailer 2$855 USD
With Clarity$899 USD

3 data points across 10 retailers

11 retailers$214 USD to $899 USD

A
Cheapest Retailer
-
$214 USD
A
Retailer 2
-
$294 USD
HK$2,300 HKD
View
A
Retailer 3
-
$317 USD
£250 GBP
View
A
Retailer 4
-
$455 USD
View
A
Retailer 5
-
$470 USD
View
B+
Retailer 6
-
$648 USD
A$997 AUD
View
B+
Retailer 7
-
$665 USD
View
B
Retailer 8
-
$855 USD
SGD 1,155 SGD
View
B
Retailer 9
-
$855 USD
View
B
Retailer 10
-
$870 USD
View
Most Expensive
B
With Clarity
851664807 · Nov 3
$899 USD
View
10 more retailers have this diamond
Prices start from $214 USDSave up to $685 USD

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
$214 USD