Radiant|Lab Grown|IGI

4.16ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816608311

Certificate IGI LG816608311

Diamond specifications and retailer prices

From $5,210 USD
Save $25,440 USD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $36,734 USD at With Clarity
View at With Clarity

About this 4.16ct lab-grown radiant diamond

This 4.16ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816608311 or 816608311. Listed at 8 retailers, with a 488% 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

4.16
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608311
Dimensions9.23 × 9.19 × 5.87 mm
L/W Ratio1.00
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.23 mm9.19 mm4.16 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608311
Side View
Table 62.0%Crown 39.2°Girdle: Slightly ThickPavilion 37.7°Culet: NoneDepth 63.9%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $9,253 USD|Low: $5,210 USD|High: $36,734 USD|Avg: $16,030 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 1, 2026
Retailer 4$5,210 USD
Retailer 6$6,695 USD
Retailer 5$7,038 USD
Retailer 1$9,253 USD
Retailer 2$11,748 USD
Retailer 8$13,580 USD
Retailer 7$22,580 USD
Retailer 3$30,650 USD
With Clarity$36,734 USD

12 data points across 9 retailers

8 retailers$5,210 USD to $30,650 USD

A
Cheapest Retailer
-
$5,210 USD
A
Retailer 2
-
$6,695 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$7,038 USD
View
B+
Retailer 4
-
$9,253 USD
€8,812 EUR
View
B+
Retailer 5
-
$11,748 USD
£9,250 GBP
View
B
Retailer 6
-
$22,580 USD
View
Price last confirmed 15 days ago
B
Retailer 7
-
$30,650 USD
View
Most Expensive
B
With Clarity
816608311 · Sep 12
$36,734 USD
View
Price last confirmed 19 days ago
7 more retailers have this diamond
Prices start from $5,210 USDSave up to $25,440 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
4.16ct Radiant
$5,210 USD