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Radiant|Lab Grown|IGI

4.91ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG654414156

Certificate IGI LG654414156

Diamond specifications and retailer prices

From $1,697 USD
1 retailer carries this diamond
Only listing: $1,697 USD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 4.91ct lab-grown radiant diamond

This 4.91ct lab-grown radiant 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 LG654414156 or 654414156. Currently listed at a single retailer. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.91
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654414156
Dimensions11.89 × 8.30 × 5.64 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.89 mm8.30 mm4.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654414156
Side View
Table 69.0%Crown 43.8°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $4,244 USD|Low: $577 USD|High: $9,850 USD|Avg: $2,848 USD|-3.5%
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Retailer 16
June 29, 2026
Retailer 10$577 USD
Retailer 7$1,085 USD
Retailer 9$1,150 USD
Retailer 15$1,301 USD
Retailer 12$1,312 USD
Retailer 6$1,422 USD
Retailer 11$1,896 USD
Retailer 3$2,261 USD
Retailer 14$2,484 USD
Retailer 16$2,751 USD
Retailer 5$2,793 USD
Retailer 13$2,812 USD
Retailer 8$3,369 USD
Retailer 4$3,671 USD
Retailer 1$4,244 USD
Retailer 2$9,850 USD

64 data points across 16 retailers

1 retailer

B+
Diamond Quarter
4.91VS1FLG5664C4N · Oct 1
$1,697 USD
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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.

B+
4.91ct Radiant
$1,697 USD