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Radiant|Lab Grown|IGI

3.15ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG745508340

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

Certificate IGI LG745508340

Diamond specifications and retailer prices

From $1,391 CAD
$994 USD
As of October 27, 2026
Save $10,967 CAD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,358 CAD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG745508340 or 745508340. Listed at 14 retailers as of October 27, 2026, with prices from $1,391 to $12,358, a $10,967 spread on the same certified stone. Do Amore Diamonds lists it at $12,358. 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

3.15
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745508340
Dimensions9.88 × 7.20 × 4.98 mm
L/W Ratio1.37
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
9.88 mm7.20 mm3.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745508340
Side View
Table 62.0%Crown 42.5°Girdle: STK-THKPavilion 35.3°Culet: NoneDepth 69.2%

Caratlytics Score

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A+
Exceptional
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $12,358 CAD|Low: $1,365 CAD|High: $17,383 CAD|Avg: $5,448 CAD|-11.2%
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
Retailer 15
October 29, 2026
Retailer 11$1,391 CAD
Retailer 10$1,514 CAD
Retailer 6$1,910 CAD
Retailer 13$2,017 CAD
Retailer 12$2,581 CAD
Retailer 9$2,617 CAD
Retailer 8$3,341 CAD
Retailer 3$3,348 CAD
Retailer 14$4,074 CAD
Retailer 4$4,718 CAD
Retailer 2$6,077 CAD
Retailer 7$7,443 CAD
Retailer 15$7,642 CAD
Retailer 5$11,463 CAD
Do Amore Diamonds$12,358 CAD

30 data points across 15 retailers

14 retailers$1,391 CAD to $12,358 CAD

A+
Cheapest Retailer
-
$1,391 CAD
$994 USD
A
Retailer 2
-
$1,514 CAD
$1,082 USD
View
A
Retailer 3
-
$1,910 CAD
$1,365 USD
View
Final sale: no returns
A
Retailer 4
-
$2,017 CAD
$1,441 USD
View
A
Retailer 5
-
$2,581 CAD
$1,844 USD
View
A
Retailer 6
-
$2,617 CAD
$1,870 USD
View
A
Retailer 7
-
$3,341 CAD
$2,387 USD
View
A
Retailer 8
-
$3,348 CAD
$2,392 USD
View
Retailer 9
-
$4,074 CAD
A$4,478 AUD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$4,718 CAD
$3,371 USD
View
B+
Retailer 11
-
$6,077 CAD
£3,419 GBP
View
Retailer 12
-
$7,642 CAD
$5,460 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$11,463 CAD
$8,190 USD
View
Most Expensive
B
Do Amore Diamonds
27-34F605E6C · Oct 29
$12,358 CAD
$8,830 USD
View
13 more retailers have this diamond
Prices start from $1,391 CADSave up to $10,967 CAD

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+
3.15ct Radiant
$1,391 CAD