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Radiant|Lab Grown|IGI

0.51ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG818658686

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

Certificate IGI LG818658686

Diamond specifications and retailer prices

From $332 CAD
$238 USD
As of October 30, 2026
Save $1,392 CAD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,724 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818658686 or 818658686. Listed at 15 retailers as of October 30, 2026, with prices from $332 to $1,724, a $1,392 spread on the same certified stone. Reve Diamonds lists it at $1,724. 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

0.51
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658686
Dimensions5.78 × 4.05 × 2.67 mm
L/W Ratio1.43
Girdle conditionFaceted
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
5.78 mm4.05 mm0.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658686
Side View
Table 70.0%Crown 29°Girdle: Slightly ThickPavilion 38.2°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
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 30
Current: $619 CAD|Low: $332 CAD|High: $1,724 CAD|Avg: $886 CAD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 9$332 CAD
Retailer 10$508 CAD
Retailer 7$520 CAD
Retailer 1$619 CAD
Retailer 4$667 CAD
Retailer 3$682 CAD
Retailer 8$792 CAD
Retailer 6$1,189 CAD
Retailer 2$1,259 CAD
Retailer 5$1,480 CAD
Reve Diamonds$1,724 CAD

27 data points across 11 retailers

15 retailers$332 CAD to $1,724 CAD

Retailer 1
-
$298 CAD
$213 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$332 CAD
$238 USD
View
Final sale: no returns
Retailer 3
-
$369 CAD
$264 USD
View
Price last confirmed 19 days ago
Retailer 4
-
$369 CAD
$264 USD
View
Price last confirmed 28 days ago
B+
Retailer 5
-
$508 CAD
$364 USD
View
B+
Retailer 6
-
$520 CAD
$372 USD
View
B+
Retailer 7
-
$619 CAD
€422 EUR
View
B+
Retailer 8
-
$667 CAD
ZAR 7,709 ZAR
View
B+
Retailer 9
-
$682 CAD
£384 GBP
View
B
Retailer 10
-
$792 CAD
$567 USD
View
Retailer 11
-
$1,185 CAD
$848 USD
View
Price last confirmed 31 days ago
B
Retailer 12
-
$1,189 CAD
$851 USD
View
B
Retailer 13
-
$1,259 CAD
$901 USD
View
B
Retailer 14
-
$1,480 CAD
£834 GBP
View
Most Expensive
B
Reve Diamonds
A8A2A97B3 · Oct 30
$1,724 CAD
$1,234 USD
View
14 more retailers have this diamond
Prices start from $332 CADSave up to $1,392 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
0.51ct Radiant
$332 CAD