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Radiant|Lab Grown|IGI

3.51ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG784645765

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

Certificate IGI LG784645765

Diamond specifications and retailer prices

From $2,928 AUD
$2,057 USD
As of October 30, 2026
Save $17,216 AUD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,144 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.51ct lab-grown radiant diamond

This 3.51ct 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 LG784645765 or 784645765. Listed at 14 retailers as of October 30, 2026, with prices from $2,928 to $20,144, a $17,216 spread on the same certified stone. Do Amore Diamonds lists it at $20,144. 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

3.51
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645765
Dimensions10.50 × 7.46 × 5.08 mm
L/W Ratio1.41
Culet sizePointed
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
10.50 mm7.46 mm3.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645765
Side View
Table 65.0%Crown 45.8°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $20,144 AUD|Low: $2,928 AUD|High: $23,404 AUD|Avg: $7,861 AUD|-13.9%
Do Amore 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
October 30, 2026
Retailer 10$2,928 AUD
Retailer 4$3,186 AUD
Retailer 12$3,475 AUD
Retailer 9$3,637 AUD
Retailer 6$4,006 AUD
Retailer 3$4,961 AUD
Retailer 14$5,155 AUD
Retailer 11$5,314 AUD
Retailer 13$5,450 AUD
Retailer 5$6,335 AUD
Retailer 8$9,161 AUD
Retailer 7$10,230 AUD
Retailer 2$13,425 AUD
Do Amore Diamonds$20,144 AUD

34 data points across 14 retailers

14 retailers$2,928 AUD to $20,144 AUD

A+
Cheapest Retailer
-
$2,928 AUD
$2,057 USD
A
Retailer 2
-
$3,186 AUD
$2,238 USD
View
A
Retailer 3
-
$3,475 AUD
$2,441 USD
View
A
Retailer 4
-
$3,637 AUD
$2,555 USD
View
A
Retailer 5
-
$4,006 AUD
$2,814 USD
View
Final sale: no returns
A
Retailer 6
-
$4,961 AUD
$3,485 USD
View
A
Retailer 7
-
$5,155 AUD
$3,621 USD
View
A
Retailer 8
-
$5,314 AUD
$3,733 USD
View
A
Retailer 9
-
$5,450 AUD
$3,828 USD
View
Retailer 10
-
$6,335 AUD
€4,238 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$9,161 AUD
$6,435 USD
View
B+
Retailer 12
-
$10,230 AUD
£5,658 GBP
View
B
Retailer 13
-
$13,425 AUD
$9,430 USD
View
Most Expensive
B
Do Amore Diamonds
27-CA01E9BDD · Oct 30
$20,144 AUD
$14,150 USD
View
13 more retailers have this diamond
Prices start from $2,928 AUDSave up to $17,216 AUD

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+
3.51ct Radiant
$2,928 AUD