Radiant|Lab Grown|IGI

3.66ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG819661739

Certificate IGI LG819661739

Diamond specifications and retailer prices

From $1,819 USD
Save $6,711 USD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,530 USD at Novita Diamonds
View at Novita Diamonds

About this 3.66ct lab-grown radiant diamond

This 3.66ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG819661739 or 819661739. Listed at 15 retailers, with prices from $1,819 to $8,530 at Novita Diamonds, a $6,711 spread on the same certified stone. 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

3.66
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819661739
Dimensions11.66 × 7.41 × 4.73 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.66 mm7.41 mm3.66 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819661739
Side View
Table 68.0%Crown 40.9°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 63.8%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $8,530 USD|Low: $1,282 USD|High: $8,530 USD|Avg: $3,678 USD|+1.0%
Novita 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
October 1, 2026
Retailer 7$1,282 USD
Retailer 14$1,819 USD
Retailer 13$2,055 USD
Retailer 9$2,680 USD
Retailer 12$2,716 USD
Retailer 11$2,800 USD
Retailer 15$3,901 USD
Retailer 2$4,111 USD
Retailer 3$4,273 USD
Retailer 4$5,409 USD
Retailer 6$5,683 USD
Retailer 5$6,617 USD
Retailer 10$6,736 USD
Retailer 8$6,816 USD
Novita Diamonds$8,530 USD

36 data points across 15 retailers

15 retailers$1,819 USD to $8,530 USD

B+
Cheapest Retailer
-
$1,819 USD
B+
Retailer 2
-
$2,055 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$2,680 USD
View
B+
Retailer 4
-
$2,716 USD
£2,139 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,800 USD
€2,667 EUR
View
B+
Retailer 6
-
$3,514 USD
View
Price last confirmed 45 days ago
B+
Retailer 7
-
$3,901 USD
£3,072 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,111 USD
View
B+
Retailer 9
-
$4,273 USD
ZAR 69,026 ZAR
View
Price last confirmed 9 days ago
B
Retailer 10
-
$5,409 USD
£4,259 GBP
View
Price last confirmed 9 days ago
B
Retailer 11
-
$5,683 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$6,617 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$6,816 USD
SGD 9,211 SGD
View
B
Retailer 14
-
$6,838 USD
View
Most Expensive
C
Novita Diamonds
cert_819661739 · Oct 1
$8,530 USD
A$13,123 AUD
View
14 more retailers have this diamond
Prices start from $1,819 USDSave up to $6,711 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.

B+
3.66ct Radiant
$1,819 USD