Radiant|Lab Grown|IGI

3.56ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508029

Certificate IGI LG754508029

Diamond specifications and retailer prices

From $2,466 USD
Save $9,324 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,790 USD at Brilliant Earth
View at Brilliant Earth

About this 3.56ct lab-grown radiant diamond

This 3.56ct 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 LG754508029 or 754508029. Listed at 21 retailers, with prices from $2,466 to $11,790 at Brilliant Earth, a $9,324 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

3.56
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508029
Dimensions7.58 × 7.58 × 11.36 mm
L/W Ratio1.00
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
7.58 mm7.58 mm3.56 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508029
Side View
Table 64.0%Crown 41.5°Girdle: Slightly ThickPavilion 33.6°Culet: NoneDepth 64.2%

Caratlytics Score

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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: Sep 30
Current: $11,790 USD|Low: $2,963 USD|High: $15,180 USD|Avg: $6,493 USD|-22.3%
Brilliant Earth
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
October 1, 2026
Retailer 15$2,963 USD
Retailer 5$3,178 USD
Retailer 2$3,208 USD
Retailer 6$3,824 USD
Retailer 10$3,942 USD
Retailer 11$4,355 USD
Retailer 16$4,941 USD
Retailer 4$5,441 USD
Retailer 14$6,075 USD
Retailer 12$7,199 USD
Retailer 8$8,302 USD
Retailer 13$8,556 USD
Retailer 9$8,880 USD
Retailer 3$11,007 USD
Retailer 7$11,400 USD
Brilliant Earth$11,790 USD

38 data points across 16 retailers

21 retailers$2,466 USD to $11,790 USD

A
Cheapest Retailer
-
$2,466 USD
A
Retailer 2
-
$2,683 USD
View
A
Retailer 3
-
$2,821 USD
View
A
Retailer 4
-
$2,963 USD
View
A
Retailer 5
-
$3,178 USD
View
A
Retailer 6
-
$3,208 USD
View
A
Retailer 7
-
$3,824 USD
View
A
Retailer 8
-
$3,942 USD
HK$30,800 HKD
View
A
Retailer 9
-
$4,340 USD
View
A
Retailer 10
-
$4,365 USD
£3,437 GBP
View
A
Retailer 11
-
$4,688 USD
£3,691 GBP
View
Price last confirmed 21 days ago
A
Retailer 12
-
$4,941 USD
€4,706 EUR
View
B+
Retailer 13
-
$5,441 USD
£4,284 GBP
View
B+
Retailer 14
-
$6,075 USD
View
B+
Retailer 15
-
$7,199 USD
ZAR 116,296 ZAR
View
B+
Retailer 16
-
$8,302 USD
View
B+
Retailer 17
-
$8,556 USD
£6,737 GBP
View
B
Retailer 18
-
$8,880 USD
A$13,662 AUD
View
B
Retailer 19
-
$11,007 USD
View
B
Retailer 20
-
$11,400 USD
SGD 15,405 SGD
View
Most Expensive
B
Brilliant Earth
18669314Y · Oct 1
$11,790 USD
View
20 more retailers have this diamond
Prices start from $2,466 USDSave up to $9,324 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
3.56ct Radiant
$2,466 USD