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Marquise|Lab Grown|IGI

1.18ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG828666428

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828666428

Diamond specifications and retailer prices

From $223 USD
As of November 4, 2026
Save $680 USD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $903 USD at Frank Darling · As of November 4, 2026
View at Frank Darling

About this 1.18ct lab-grown marquise diamond

This 1.18ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG828666428 or 828666428. Listed at 4 retailers as of November 4, 2026, with prices from $223 to $903, a $680 spread on the same certified stone. Frank Darling lists it at $903. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
F
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828666428
Dimensions11.18 × 5.38 × 3.43 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.18 mm5.38 mm1.18 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828666428
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°CuletDepth 63.8%

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 4
Current: $903 USD|Low: $223 USD|High: $909 USD|Avg: $601 USD|-0.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 3$223 USD
Retailer 4$341 USD
Retailer 2$685 USD
Frank Darling$903 USD

13 data points across 4 retailers

4 retailers$223 USD to $903 USD

A
Cheapest Retailer
-
$223 USD
Final sale: no returns
B+
Retailer 2
-
$341 USD
View
Retailer 3
-
$685 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Frank Darling
100195479579KD · Nov 4
$903 USD
View
3 more retailers have this diamond
Prices start from $223 USDSave up to $680 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
1.18ct Marquise
$223 USD