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Round|Lab Grown|IGI

0.51ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG782655554

Shape and cutting style on the report: Round brilliant

Certificate IGI LG782655554

Diamond specifications and retailer prices

From $123 CAD
$88 USD
As of October 26, 2026
Save $1,048 CAD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,171 CAD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG782655554 or 782655554. Listed at 14 retailers as of October 26, 2026, with prices from $123 to $1,171, a $1,048 spread on the same certified stone. Reve Diamonds lists it at $1,171. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782655554
Dimensions5.12 × 5.16 × 3.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.12 mm5.16 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782655554
Side View
Table 60.0%Crown 33.1°Girdle: MediumPavilion 41°Culet: NoneDepth 60.7%

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 26
Current: $280 CAD|Low: $119 CAD|High: $1,171 CAD|Avg: $402 CAD|+4.3%
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
Reve Diamonds
October 29, 2026
Retailer 9$123 CAD
Retailer 10$137 CAD
Retailer 11$143 CAD
Retailer 3$162 CAD
Retailer 13$162 CAD
Retailer 1$280 CAD
Retailer 7$314 CAD
Retailer 4$323 CAD
Retailer 5$491 CAD
Retailer 8$549 CAD
Retailer 12$575 CAD
Retailer 2$584 CAD
Retailer 6$1,130 CAD
Reve Diamonds$1,171 CAD

42 data points across 14 retailers

14 retailers$123 CAD to $1,171 CAD

A
Cheapest Retailer
-
$123 CAD
$88 USD
A
Retailer 2
-
$137 CAD
$98 USD
View
Final sale: no returns
A
Retailer 3
-
$143 CAD
$102 USD
View
A
Retailer 4
-
$162 CAD
$116 USD
View
A
Retailer 5
-
$162 CAD
$116 USD
View
A
Retailer 6
-
$280 CAD
£157 GBP
View
A
Retailer 7
-
$314 CAD
€214 EUR
View
A
Retailer 8
-
$323 CAD
$231 USD
View
B+
Retailer 9
-
$491 CAD
$351 USD
View
B
Retailer 10
-
$549 CAD
$392 USD
View
B
Retailer 11
-
$575 CAD
$411 USD
View
B
Retailer 12
-
$584 CAD
$417 USD
View
B
Retailer 13
-
$1,130 CAD
£636 GBP
View
Most Expensive
B
Reve Diamonds
562D23476 · Oct 28
$1,171 CAD
$837 USD
View
13 more retailers have this diamond
Prices start from $123 CADSave up to $1,048 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 Round
$123 CAD