Radiant|Lab Grown|IGI

15.56ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG617483569

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG617483569

Diamond specifications and retailer prices

From $2,846 USD
As of October 30, 2026
Save $8,658 USD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,504 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 15.56ct lab-grown radiant diamond

This 15.56ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617483569 or 617483569. Listed at 16 retailers as of October 30, 2026, with prices from $2,846 to $11,504, a $8,658 spread on the same certified stone. Taylor and Hart lists it at $11,504. 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

15.56
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617483569
Dimensions16.35 × 11.36 × 7.63 mm
L/W Ratio1.44
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
16.35 mm11.36 mm15.56 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617483569
Side View
Table 65.0%Crown 33.8°Girdle: MED-STKPavilion 36.3°Culet: LNGDepth 67.2%

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: Oct 30
Current: $5,241 USD|Low: $2,732 USD|High: $23,140 USD|Avg: $6,547 USD|+2.9%
Retailer 1
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Taylor and Hart
October 31, 2026
Retailer 16$2,846 USD
Retailer 14$3,097 USD
Retailer 4$3,186 USD
Retailer 6$3,301 USD
Retailer 11$3,301 USD
Retailer 15$3,305 USD
Retailer 7$3,872 USD
Retailer 2$4,330 USD
Retailer 12$4,538 USD
Retailer 10$5,111 USD
Retailer 3$5,135 USD
Retailer 9$5,165 USD
Retailer 1$5,241 USD
Retailer 17$6,127 USD
Retailer 5$9,189 USD
Retailer 13$11,295 USD
Taylor and Hart$11,504 USD
Retailer 8$23,140 USD

32 data points across 18 retailers

16 retailers$2,846 USD to $11,504 USD

A
Cheapest Retailer
-
$2,846 USD
A
Retailer 2
-
$3,097 USD
View
A
Retailer 3
-
$3,186 USD
View
Final sale: no returns
A
Retailer 4
-
$3,301 USD
View
Retailer 5
-
$3,301 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$3,305 USD
View
B+
Retailer 7
-
$3,872 USD
View
B+
Retailer 8
-
$4,330 USD
View
B+
Retailer 9
-
$4,538 USD
View
B+
Retailer 10
-
$5,111 USD
ZAR 82,569 ZAR
View
Retailer 11
-
$5,135 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$5,241 USD
€4,991 EUR
View
Retailer 13
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$6,127 USD
A$9,426 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
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$9,189 USD
View
B
Retailer 15
-
$11,295 USD
View
Most Expensive
B
Taylor and Hart
L7V1QYQ · Oct 30
$11,504 USD
View
15 more retailers have this diamond
Prices start from $2,846 USDSave up to $8,658 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
15.56ct Radiant
$2,846 USD