Radiant|Lab Grown|IGI

3.21ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG761510442

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

Certificate IGI LG761510442

Diamond specifications and retailer prices

From $3,780 USD
As of October 27, 2026
Save $11,879 USD (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,659 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.21ct lab-grown radiant diamond

This 3.21ct 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 LG761510442 or 761510442. Listed at 19 retailers as of October 27, 2026, with prices from $3,780 to $15,659, a $11,879 spread on the same certified stone. Taylor and Hart lists it at $15,659. 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

3.21
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761510442
Dimensions9.96 × 7.16 × 4.81 mm
L/W Ratio1.39
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.96 mm7.16 mm3.21 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761510442
Side View
Table 68.0%Crown 44°Girdle: Slightly ThickPavilion 31.2°Culet: NoneDepth 67.2%

Caratlytics Score

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

Price History

Last verified: Oct 27
Current: $5,797 USD|Low: $3,629 USD|High: $15,659 USD|Avg: $7,794 USD|-1.9%
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
Taylor and Hart
October 29, 2026
Retailer 16$3,780 USD
Retailer 13$3,961 USD
Retailer 5$4,210 USD
Retailer 7$4,232 USD
Retailer 10$4,385 USD
Retailer 2$5,412 USD
Retailer 12$5,479 USD
Retailer 1$5,797 USD
Retailer 14$6,405 USD
Retailer 8$6,782 USD
Retailer 15$6,871 USD
Retailer 17$7,685 USD
Retailer 11$9,441 USD
Retailer 4$11,160 USD
Retailer 6$11,186 USD
Retailer 3$11,650 USD
Retailer 9$15,081 USD
Taylor and Hart$15,659 USD

40 data points across 18 retailers

19 retailers$3,780 USD to $15,659 USD

A
Cheapest Retailer
-
$3,780 USD
A
Retailer 2
-
$3,961 USD
View
B+
Retailer 3
-
$4,210 USD
View
A
Retailer 4
-
$4,232 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,385 USD
View
B+
Retailer 6
-
$5,412 USD
View
B+
Retailer 7
-
$5,479 USD
View
B+
Retailer 8
-
$5,797 USD
£4,565 GBP
View
B+
Retailer 9
-
$6,405 USD
View
B+
Retailer 10
-
$6,782 USD
£5,340 GBP
View
B+
Retailer 11
-
$6,871 USD
€6,544 EUR
View
B+
Retailer 12
-
$7,685 USD
View
B
Retailer 13
-
$9,441 USD
£7,434 GBP
View
B
Retailer 14
-
$10,659 USD
View
B
Retailer 15
-
$11,160 USD
View
B
Retailer 16
-
$11,186 USD
View
B
Retailer 17
-
$11,650 USD
View
B
Retailer 18
-
$15,081 USD
SGD 20,380 SGD
View
Most Expensive
B
Taylor and Hart
WXSO6VW · Oct 30
$15,659 USD
View
18 more retailers have this diamond
Prices start from $3,780 USDSave up to $11,879 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
3.21ct Radiant
$3,780 USD