Radiant|Lab Grown|IGI

0.51ct E IF Radiant Lab Grown Diamond

VG • E/IF • IGI LG789630177

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

Certificate IGI LG789630177

Diamond specifications and retailer prices

From $187 CAD
$134 USD
As of October 30, 2026
Save $1,763 CAD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,142 CAD at Diamond Quarter · As of October 28, 2026
View at Diamond Quarter

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG789630177 or 789630177. Listed at 22 retailers as of October 29, 2026, with a 942% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789630177
Dimensions5.73 × 3.70 × 2.69 mm
L/W Ratio1.55
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
5.73 mm3.70 mm0.51 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789630177
Side View
Table 62.0%Crown 45.2°Girdle: ThickPavilion 34.5°Culet: NoneDepth 72.7%

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 30
Current: $393 CAD|Low: $176 CAD|High: $1,996 CAD|Avg: $593 CAD|+1.1%
Retailer 1
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Retailer 20
October 31, 2026
Retailer 4$187 CAD
Retailer 20$218 CAD
Retailer 10$228 CAD
Retailer 15$232 CAD
Retailer 7$254 CAD
Retailer 19$328 CAD
Retailer 1$393 CAD
Retailer 11$408 CAD
Retailer 3$420 CAD
Retailer 5$455 CAD
Retailer 2$460 CAD
Retailer 13$468 CAD
Retailer 9$580 CAD
Retailer 14$629 CAD
Retailer 6$652 CAD
Retailer 17$747 CAD
Retailer 12$789 CAD
Retailer 8$825 CAD
Retailer 18$1,374 CAD
Retailer 16$1,950 CAD

32 data points across 20 retailers

22 retailers$187 CAD to $1,950 CAD

A
Cheapest Retailer
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$187 CAD
$134 USD
A
Retailer 2
-
$218 CAD
$156 USD
View
A
Retailer 3
-
$228 CAD
$163 USD
View
A
Retailer 4
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$232 CAD
$166 USD
View
A
Retailer 5
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$254 CAD
$182 USD
View
Final sale: no returns
A
Retailer 6
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$328 CAD
$235 USD
View
A
Retailer 7
-
$393 CAD
£222 GBP
View
Retailer 8
-
$408 CAD
€278 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$420 CAD
ZAR 4,855 ZAR
View
B+
Retailer 10
-
$455 CAD
$325 USD
View
B+
Retailer 11
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$460 CAD
$329 USD
View
Retailer 12
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$468 CAD
$335 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
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$580 CAD
A$639 AUD
View
B+
Retailer 14
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$629 CAD
$450 USD
View
B+
Retailer 15
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$652 CAD
$467 USD
View
B
Retailer 16
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$698 CAD
$500 USD
View
B
Retailer 17
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$747 CAD
$535 USD
View
B
Retailer 18
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$789 CAD
$565 USD
View
B
Retailer 19
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$825 CAD
$591 USD
View
B
Retailer 20
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$1,374 CAD
$983 USD
View
B
Retailer 21
-
$1,950 CAD
£1,099 GBP
View
Most Expensive
Diamond Quarter
0.51IFELG09B0A5N · Oct 28
$3,142 CAD
£1,771 GBP
View
Price under review
21 more retailers have this diamond
Prices start from $187 CADSave up to $1,763 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
$187 CAD