Radiant|Lab Grown|IGI

4.06ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804660800

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

Certificate IGI LG804660800

Diamond specifications and retailer prices

From $12,512 USD
£9,852 GBP
As of October 29, 2026
Save $19,155 USD (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $31,668 USD at Cape Diamonds · As of October 25, 2026
View at Cape Diamonds

About this 4.06ct lab-grown radiant diamond

This 4.06ct 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 LG804660800 or 804660800. Listed at 20 retailers as of October 25, 2026, with prices from $12,512 to $31,668, a $19,155 spread on the same certified stone. Cape Diamonds lists it at $31,668. 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

4.06
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle28.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660800
Dimensions10.74 × 7.86 × 4.98 mm
L/W Ratio1.37
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.74 mm7.86 mm4.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660800
Side View
Table 62.0%Crown 42°Girdle: Slightly ThickPavilion 28.8°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $31,668 USD|Low: $12,361 USD|High: $59,763 USD|Avg: $22,714 USD|+1.5%
Cape Diamonds
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
Retailer 19
October 29, 2026
Retailer 12$12,512 USD
Retailer 8$12,754 USD
Retailer 19$12,876 USD
Retailer 7$13,709 USD
Retailer 14$13,792 USD
Retailer 5$13,998 USD
Retailer 3$14,420 USD
Retailer 4$14,936 USD
Retailer 6$14,936 USD
Retailer 16$15,607 USD
Retailer 13$17,376 USD
Retailer 9$21,397 USD
Retailer 2$21,979 USD
Retailer 18$26,989 USD
Retailer 15$27,658 USD
Cape Diamonds$31,668 USD
Retailer 17$41,631 USD
Retailer 11$42,324 USD
Retailer 10$52,679 USD

38 data points across 19 retailers

20 retailers$12,512 USD to $31,668 USD

B+
Cheapest Retailer
-
$12,512 USD
£9,852 GBP
B+
Retailer 2
-
$12,754 USD
View
B+
Retailer 3
-
$12,876 USD
View
B+
Retailer 4
-
$13,185 USD
View
B+
Retailer 5
-
$13,709 USD
View
B+
Retailer 6
-
$13,792 USD
View
B+
Retailer 7
-
$13,998 USD
View
B+
Retailer 8
-
$14,420 USD
View
Final sale: no returns
B
Retailer 9
-
$14,936 USD
View
B
Retailer 10
-
$14,936 USD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$15,607 USD
View
B+
Retailer 12
-
$17,376 USD
£13,682 GBP
View
B
Retailer 13
-
$21,397 USD
£16,848 GBP
View
B
Retailer 14
-
$21,979 USD
£17,306 GBP
View
B
Retailer 15
-
$26,989 USD
View
B
Retailer 16
-
$27,658 USD
€26,341 EUR
View
Most Expensive
B
Cape Diamonds
cert_804660800 · Oct 25
$31,668 USD
ZAR 511,592 ZAR
View
16 more retailers have this diamond
Prices start from $12,512 USDSave up to $19,155 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.

B+
4.06ct Radiant
$12,512 USD