Marquise|Lab Grown|IGI

4.97ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG845667365

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845667365

Diamond specifications and retailer prices

From $811 USD
As of November 1, 2026
Save $4,204 USD (84%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $9,410 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 4.97ct lab-grown marquise diamond

This 4.97ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845667365 or 845667365. Listed at 4 retailers as of October 28, 2026, with a 518% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.97
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845667365
Dimensions17.31 × 8.95 × 5.60 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.31 mm8.95 mm4.97 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845667365
Side View
Table 61.0%Crown 35.1°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $9,410 USD|Low: $811 USD|High: $9,410 USD|Avg: $4,377 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 3$811 USD
Retailer 2$1,396 USD
Retailer 4$5,015 USD
Brilliant Earth$9,410 USD

12 data points across 4 retailers

4 retailers$811 USD to $5,015 USD

A
Cheapest Retailer
-
$811 USD
Final sale: no returns
A
Retailer 2
-
$1,396 USD
£1,099 GBP
View
B
Retailer 3
-
$5,015 USD
View
Most Expensive
Brilliant Earth
22179017A · Oct 26
$9,410 USD
View
Price last confirmed 7 days ago
3 more retailers have this diamond
Prices start from $811 USDSave up to $4,204 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
4.97ct Marquise
$811 USD