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Round|Lab Grown|IGI

0.51ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG749571170

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749571170

Diamond specifications and retailer prices

From $130 CAD
$93 USD
As of October 29, 2026
Save $1,061 CAD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,191 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 LG749571170 or 749571170. Listed at 15 retailers as of October 28, 2026, with prices from $130 to $1,191, a $1,061 spread on the same certified stone. Reve Diamonds lists it at $1,191. 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 angle35°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749571170
Dimensions5.13 × 5.10 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
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
5.13 mm5.10 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749571170
Side View
Table 59.0%Crown 35°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.7%

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 29
Current: $300 CAD|Low: $101 CAD|High: $1,191 CAD|Avg: $411 CAD|+9.2%
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
Reve Diamonds
October 29, 2026
Retailer 3$130 CAD
Retailer 15$146 CAD
Retailer 5$150 CAD
Retailer 12$171 CAD
Retailer 13$171 CAD
Retailer 10$231 CAD
Retailer 1$300 CAD
Retailer 6$335 CAD
Retailer 9$335 CAD
Retailer 7$364 CAD
Retailer 14$372 CAD
Retailer 11$486 CAD
Retailer 4$516 CAD
Retailer 2$599 CAD
Retailer 8$1,187 CAD
Reve Diamonds$1,191 CAD

42 data points across 16 retailers

15 retailers$130 CAD to $1,191 CAD

A
Cheapest Retailer
-
$130 CAD
$93 USD
A
Retailer 2
-
$146 CAD
$104 USD
View
Final sale: no returns
A
Retailer 3
-
$150 CAD
$107 USD
View
A
Retailer 4
-
$171 CAD
$122 USD
View
A
Retailer 5
-
$171 CAD
$122 USD
View
Retailer 6
-
$231 CAD
$165 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$300 CAD
£169 GBP
View
B+
Retailer 8
-
$335 CAD
$239 USD
View
B+
Retailer 9
-
$335 CAD
€228 EUR
View
B+
Retailer 10
-
$372 CAD
$266 USD
View
B+
Retailer 11
-
$486 CAD
$347 USD
View
B+
Retailer 12
-
$516 CAD
$369 USD
View
B
Retailer 13
-
$599 CAD
$428 USD
View
B
Retailer 14
-
$1,187 CAD
£668 GBP
View
Most Expensive
B
Reve Diamonds
9200D179A · Oct 28
$1,191 CAD
$851 USD
View
14 more retailers have this diamond
Prices start from $130 CADSave up to $1,061 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
$130 CAD