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Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG828688643

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

Certificate IGI LG828688643

Diamond specifications and retailer prices

From $1,944 CAD
$1,389 USD
As of October 29, 2026
Save $15,229 CAD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $17,173 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.18ct lab-grown radiant diamond

This 3.18ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG828688643 or 828688643. Listed at 18 retailers as of October 29, 2026, with prices from $1,944 to $17,173, a $15,229 spread on the same certified stone. Brilliant Earth lists it at $17,173. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.18
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828688643
Dimensions10.11 × 7.21 × 5.01 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.11 mm7.21 mm3.18 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828688643
Side View
Table 70.0%Crown 43.2°Girdle: Slightly ThickPavilion 38.4°Culet: NoneDepth 69.5%

Caratlytics Score

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A
Excellent
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 29
Current: $17,173 CAD|Low: $1,944 CAD|High: $17,173 CAD|Avg: $4,986 CAD
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
Retailer 17
October 30, 2026
Retailer 13$1,944 CAD
Retailer 15$2,253 CAD
Retailer 2$2,388 CAD
Retailer 17$2,469 CAD
Retailer 11$2,835 CAD
Retailer 5$2,897 CAD
Retailer 8$3,637 CAD
Retailer 6$3,878 CAD
Retailer 4$4,442 CAD
Retailer 14$4,674 CAD
Retailer 9$4,970 CAD
Retailer 7$5,877 CAD
Retailer 16$6,502 CAD
Retailer 12$7,018 CAD
Retailer 3$7,303 CAD
Retailer 10$7,513 CAD
Brilliant Earth$17,173 CAD

21 data points across 17 retailers

18 retailers$1,944 CAD to $17,173 CAD

A
Cheapest Retailer
-
$1,944 CAD
$1,389 USD
Final sale: no returns
A
Retailer 2
-
$2,253 CAD
$1,610 USD
View
A
Retailer 3
-
$2,388 CAD
£1,344 GBP
View
A
Retailer 4
-
$2,469 CAD
$1,764 USD
View
A
Retailer 5
-
$2,835 CAD
£1,595 GBP
View
A
Retailer 6
-
$2,897 CAD
$2,070 USD
View
A
Retailer 7
-
$3,637 CAD
€2,475 EUR
View
A
Retailer 8
-
$3,878 CAD
$2,771 USD
View
A
Retailer 9
-
$4,442 CAD
$3,174 USD
View
A
Retailer 10
-
$4,674 CAD
ZAR 53,954 ZAR
View
Retailer 11
-
$4,970 CAD
£2,796 GBP
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$5,877 CAD
$4,199 USD
View
B+
Retailer 13
-
$6,502 CAD
£3,658 GBP
View
B+
Retailer 14
-
$7,018 CAD
$5,014 USD
View
B+
Retailer 15
-
$7,303 CAD
$5,218 USD
View
B
Retailer 16
-
$7,513 CAD
SGD 7,254 SGD
View
Retailer 17
-
$9,917 CAD
A$10,901 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21324580A · Oct 29
$17,173 CAD
$12,270 USD
View
17 more retailers have this diamond
Prices start from $1,944 CADSave up to $15,229 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
3.18ct Radiant
$1,944 CAD