CaratHunter
Plans
Marquise|Lab Grown|IGI

1.28ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG818660512

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818660512

Diamond specifications and retailer prices

From €442 EUR
As of November 5, 2026
5 retailers carry this diamond
Most expensive: €756 EUR at Taylor and Hart · As of October 16, 2026
View at Taylor and Hart

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818660512 or 818660512. Listed at 5 retailers as of November 5, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818660512
Dimensions12.85 × 5.23 × 3.33 mm
L/W Ratio2.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.85 mm5.23 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818660512
Side View
Table 55.0%Crown 34°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 63.7%

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 5
Current: €640 EUR|Low: €288 EUR|High: €3,590 EUR|Avg: €821 EUR|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 28, 2026
Retailer 4€297 EUR
Retailer 5€355 EUR
Retailer 10€359 EUR
Retailer 6€377 EUR
Retailer 3€442 EUR
Retailer 7€503 EUR
Retailer 8€600 EUR
Retailer 1€640 EUR
Taylor and Hart€756 EUR
Retailer 9€1,000 EUR
Retailer 2€3,590 EUR

7 data points across 11 retailers

5 retailers

Retailer 1
-
€297 EUR
Price last confirmed 15 days ago
A
Retailer 2
-
€442 EUR
View
Retailer 3
-
€600 EUR
View
Price last confirmed 45 days ago
Retailer 4
-
€640 EUR
View
Price last confirmed 10 days ago
Most Expensive
Taylor and Hart
XIN0EJI · Oct 16
€756 EUR
$844 USD
View
Price last confirmed 21 days ago
4 more retailers have this diamond
Prices start from €442 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
1.28ct Marquise
€442 EUR