Radiant|Lab Grown|IGI

5.05ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665415779

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

Certificate IGI LG665415779

Diamond specifications and retailer prices

From $8,710 USD
As of October 28, 2026
Save $29,137 USD (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $37,847 USD at Taylor and Hart · As of October 28, 2026
View at Taylor and Hart

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665415779 or 665415779. Listed at 22 retailers as of October 28, 2026, with prices from $8,710 to $37,847, a $29,137 spread on the same certified stone. Taylor and Hart lists it at $37,847. 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

5.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.8°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415779
Dimensions11.91 × 8.41 × 5.69 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.91 mm8.41 mm5.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415779
Side View
Table 66.0%Crown 48.8°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A+
Exceptional
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 28
Current: $19,931 USD|Low: $8,710 USD|High: $61,910 USD|Avg: $18,893 USD|-2.2%
Retailer 1
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
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Retailer 17
Taylor and Hart
October 29, 2026
Retailer 16$8,710 USD
Retailer 8$9,857 USD
Retailer 3$10,251 USD
Retailer 7$11,039 USD
Retailer 2$11,300 USD
Retailer 5$11,434 USD
Retailer 12$11,627 USD
Retailer 4$11,829 USD
Retailer 15$12,507 USD
Retailer 11$14,939 USD
Retailer 10$17,090 USD
Retailer 6$18,090 USD
Retailer 1$19,931 USD
Retailer 9$21,051 USD
Retailer 13$25,543 USD
Retailer 14$26,114 USD
Taylor and Hart$37,847 USD
Retailer 17$61,510 USD

30 data points across 18 retailers

22 retailers$8,710 USD to $37,847 USD

A+
Cheapest Retailer
-
$8,710 USD
A
Retailer 2
-
$9,857 USD
View
A
Retailer 3
-
$10,251 USD
View
A
Retailer 4
-
$11,039 USD
View
Final sale: no returns
A
Retailer 5
-
$11,300 USD
View
A
Retailer 6
-
$11,434 USD
View
A
Retailer 7
-
$11,627 USD
View
A
Retailer 8
-
$11,700 USD
View
Price last confirmed 13 days ago
A
Retailer 9
-
$11,829 USD
View
A
Retailer 10
-
$12,507 USD
View
A
Retailer 11
-
$12,608 USD
View
Price last confirmed 13 days ago
A
Retailer 12
-
$14,939 USD
£11,763 GBP
View
A
Retailer 13
-
$17,090 USD
View
A
Retailer 14
-
$18,090 USD
£14,244 GBP
View
B+
Retailer 15
-
$19,931 USD
£15,694 GBP
View
B+
Retailer 16
-
$21,051 USD
View
B+
Retailer 17
-
$21,761 USD
View
B+
Retailer 18
-
$25,543 USD
ZAR 412,656 ZAR
View
B+
Retailer 19
-
$26,114 USD
A$40,176 AUD
View
Most Expensive
B
Taylor and Hart
EUEARCY · Oct 28
$37,847 USD
View
19 more retailers have this diamond
Prices start from $8,710 USDSave up to $29,137 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+
5.05ct Radiant
$8,710 USD