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Radiant|Lab Grown|IGI

5.25ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG818640333

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

Certificate IGI LG818640333

Diamond specifications and retailer prices

From $8,370 CAD
$5,980 USD
As of October 27, 2026
Save $28,634 CAD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $37,004 CAD at With Clarity · As of October 28, 2026
View at With Clarity

About this 5.25ct lab-grown radiant diamond

This 5.25ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818640333 or 818640333. Listed at 21 retailers as of October 27, 2026, with prices from $8,370 to $37,004, a $28,634 spread on the same certified stone. With Clarity lists it at $37,004. 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

5.25
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640333
Dimensions12.20 × 8.86 × 5.65 mm
L/W Ratio1.38
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
12.20 mm8.86 mm5.25 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640333
Side View
Table 60.0%Crown 39.9°Girdle: Slightly ThickPavilion 32.6°Culet: NoneDepth 63.8%

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 27
Current: $19,724 CAD|Low: $8,370 CAD|High: $37,004 CAD|Avg: $15,779 CAD|+1.1%
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
Retailer 18
Retailer 19
Retailer 20
With Clarity
October 29, 2026
Retailer 19$8,370 CAD
Retailer 6$8,771 CAD
Retailer 2$8,896 CAD
Retailer 13$9,681 CAD
Retailer 5$9,699 CAD
Retailer 10$9,709 CAD
Retailer 15$10,050 CAD
Retailer 9$11,526 CAD
Retailer 18$11,747 CAD
Retailer 12$12,162 CAD
Retailer 8$13,822 CAD
Retailer 20$14,301 CAD
Retailer 3$14,984 CAD
Retailer 16$15,011 CAD
Retailer 17$15,942 CAD
Retailer 7$18,373 CAD
Retailer 1$19,724 CAD
Retailer 14$19,862 CAD
Retailer 4$27,010 CAD
Retailer 11$33,897 CAD
With Clarity$37,004 CAD

11 data points across 21 retailers

21 retailers$8,370 CAD to $37,004 CAD

A
Cheapest Retailer
-
$8,370 CAD
$5,980 USD
A
Retailer 2
-
$8,771 CAD
$6,267 USD
View
A
Retailer 3
-
$8,896 CAD
$6,356 USD
View
A
Retailer 4
-
$9,681 CAD
$6,917 USD
View
Final sale: no returns
A
Retailer 5
-
$9,699 CAD
$6,930 USD
View
A
Retailer 6
-
$9,709 CAD
$6,937 USD
View
A
Retailer 7
-
$10,050 CAD
£5,654 GBP
View
A
Retailer 8
-
$11,526 CAD
$8,235 USD
View
A
Retailer 9
-
$11,747 CAD
$8,393 USD
View
A
Retailer 10
-
$12,162 CAD
£6,842 GBP
View
A
Retailer 11
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$13,822 CAD
£7,776 GBP
View
A
Retailer 12
-
$14,301 CAD
$10,218 USD
View
A
Retailer 13
-
$14,984 CAD
$10,706 USD
View
A
Retailer 14
-
$15,011 CAD
$10,725 USD
View
A
Retailer 15
-
$15,942 CAD
€10,848 EUR
View
A
Retailer 16
-
$18,373 CAD
$13,127 USD
View
A
Retailer 17
-
$19,724 CAD
ZAR 227,670 ZAR
View
A
Retailer 18
-
$19,862 CAD
£11,174 GBP
View
B+
Retailer 19
-
$27,010 CAD
$19,299 USD
View
B+
Retailer 20
-
$33,897 CAD
$24,219 USD
View
Most Expensive
B+
With Clarity
818640333 · Oct 28
$37,004 CAD
$26,439 USD
View
20 more retailers have this diamond
Prices start from $8,370 CADSave up to $28,634 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
5.25ct Radiant
$8,370 CAD