Radiant|Lab Grown|IGI

15.05ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG665453229

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG665453229

Diamond specifications and retailer prices

From $4,360 USD
£3,433 GBP
As of October 30, 2026
Save $15,004 USD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $34,470 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 15.05ct lab-grown radiant diamond

This 15.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665453229 or 665453229. Listed at 20 retailers as of October 30, 2026, with a 344% 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

15.05
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665453229
Dimensions17.45 × 17.45 × 12.20 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.45 mm17.45 mm15.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665453229
Side View
Table 65.0%Crown 37.3°Girdle: MediumPavilion 30.9°Culet: NoneDepth 63.4%

Caratlytics Score

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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: $34,470 USD|Low: $4,360 USD|High: $34,470 USD|Avg: $10,306 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 2$4,360 USD
Retailer 6$4,665 USD
Retailer 3$4,889 USD
Retailer 17$5,225 USD
Retailer 13$5,412 USD
Retailer 14$5,591 USD
Retailer 4$5,825 USD
Retailer 15$6,763 USD
Retailer 11$7,036 USD
Retailer 9$7,304 USD
Retailer 12$8,377 USD
Retailer 7$9,056 USD
Retailer 8$11,084 USD
Retailer 10$13,471 USD
Retailer 18$15,042 USD
Retailer 16$15,890 USD
Retailer 5$19,364 USD
Brilliant Earth$34,470 USD

32 data points across 18 retailers

20 retailers$4,360 USD to $19,364 USD

A
Cheapest Retailer
-
$4,360 USD
£3,433 GBP
A
Retailer 2
-
$4,665 USD
View
A
Retailer 3
-
$4,889 USD
View
A
Retailer 4
-
$5,225 USD
View
Final sale: no returns
A
Retailer 5
-
$5,412 USD
View
A
Retailer 6
-
$5,591 USD
View
A
Retailer 7
-
$5,825 USD
View
Retailer 8
-
$5,825 USD
View
Price last confirmed 18 days ago
A
Retailer 9
-
$6,763 USD
View
A
Retailer 10
-
$7,036 USD
£5,540 GBP
View
B+
Retailer 11
-
$7,304 USD
View
B+
Retailer 12
-
$8,377 USD
ZAR 135,325 ZAR
View
B+
Retailer 13
-
$8,532 USD
View
Retailer 14
-
$9,056 USD
€8,625 EUR
View
Price last confirmed 7 days ago
Retailer 15
-
$11,084 USD
A$17,053 AUD
View
Price last confirmed 8 days ago
Retailer 16
-
$13,471 USD
A$20,724 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$15,042 USD
View
B
Retailer 18
-
$15,890 USD
View
B
Retailer 19
-
$19,364 USD
View
Most Expensive
Brilliant Earth
14053210A · Oct 29
$34,470 USD
View
Price under review
19 more retailers have this diamond
Prices start from $4,360 USDSave up to $15,004 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
15.05ct Radiant
$4,360 USD