Radiant|Lab Grown|IGI

4.17ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG812651887

Certificate IGI LG812651887

Diamond specifications and retailer prices

From $5,118 USD
Save $11,372 USD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $29,387 USD at With Clarity
View at With Clarity

About this 4.17ct lab-grown radiant diamond

This 4.17ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812651887 or 812651887. Listed at 17 retailers, with a 222% 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

4.17
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812651887
Dimensions11.60 × 7.87 × 5.33 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm7.87 mm4.17 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812651887
Side View
Table 63.0%Crown 42°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $5,607 USD|Low: $4,093 USD|High: $29,387 USD|Avg: $11,690 USD|-17.1%
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
Retailer 16
Retailer 17
With Clarity
September 25, 2026
Retailer 12$5,305 USD
Retailer 16$5,579 USD
Retailer 1$5,607 USD
Retailer 11$5,732 USD
Retailer 10$5,855 USD
Retailer 9$5,866 USD
Retailer 2$6,720 USD
Retailer 17$7,549 USD
Retailer 3$7,803 USD
Retailer 14$8,702 USD
Retailer 4$9,004 USD
Retailer 7$12,475 USD
Retailer 13$15,229 USD
Retailer 15$15,929 USD
Retailer 6$16,508 USD
Retailer 5$19,400 USD
Retailer 8$21,279 USD
With Clarity$29,387 USD

11 data points across 18 retailers

17 retailers$5,118 USD to $16,490 USD

A
Cheapest Retailer
-
$5,118 USD
A
Retailer 2
-
$5,305 USD
View
A
Retailer 3
-
$5,364 USD
View
A
Retailer 4
-
$5,579 USD
CA$7,749 CAD
View
A
Retailer 5
-
$5,607 USD
View
A
Retailer 6
-
$5,732 USD
View
A
Retailer 7
-
$5,855 USD
View
A
Retailer 8
-
$5,866 USD
View
Price last confirmed 45 days ago
B+
Retailer 9
-
$7,803 USD
£6,144 GBP
View
Price last confirmed 39 days ago
B+
Retailer 10
-
$8,702 USD
View
B+
Retailer 11
-
$9,004 USD
€8,575 EUR
View
Price last confirmed 47 days ago
B
Retailer 12
-
$15,229 USD
View
B
Retailer 13
-
$15,929 USD
View
B
Retailer 14
-
$16,490 USD
View
B
Retailer 15
-
$19,400 USD
View
Price last confirmed 38 days ago
B
Retailer 16
-
$21,279 USD
View
Price last confirmed 41 days ago
Most Expensive
B
With Clarity
812651887 · Aug 12
$29,387 USD
View
Price last confirmed 50 days ago
16 more retailers have this diamond
Prices start from $5,118 USDSave up to $11,372 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.

A
4.17ct Radiant
$5,118 USD