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Round|Lab Grown|IGI

1.51ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG455006167

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455006167

Diamond specifications and retailer prices

From $457 CAD
$327 USD
As of October 29, 2026
Save $3,608 CAD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,065 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455006167 or 455006167. Listed at 19 retailers as of October 29, 2026, with prices from $457 to $4,065, a $3,608 spread on the same certified stone. Do Amore Diamonds lists it at $4,065. 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

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455006167
Dimensions7.31 × 7.37 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
7.31 mm7.37 mm1.51 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455006167
Side View
Table 58.5%Crown 35.5°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,065 CAD|Low: $457 CAD|High: $4,065 CAD|Avg: $1,349 CAD|+0.3%
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 19
October 30, 2026
Retailer 19$457 CAD
Retailer 16$531 CAD
Retailer 2$559 CAD
Retailer 6$567 CAD
Retailer 15$567 CAD
Retailer 3$652 CAD
Retailer 7$782 CAD
Retailer 8$929 CAD
Retailer 10$975 CAD
Retailer 12$1,013 CAD
Retailer 17$1,031 CAD
Retailer 11$1,127 CAD
Retailer 18$1,662 CAD
Retailer 9$1,704 CAD
Retailer 14$1,746 CAD
Retailer 5$2,012 CAD
Retailer 4$2,231 CAD
Retailer 13$2,457 CAD
Do Amore Diamonds$4,065 CAD

14 data points across 19 retailers

19 retailers$457 CAD to $4,065 CAD

A
Cheapest Retailer
-
$457 CAD
$327 USD
A
Retailer 2
-
$531 CAD
$380 USD
View
B+
Retailer 3
-
$559 CAD
$400 USD
View
A
Retailer 4
-
$567 CAD
$406 USD
View
A
Retailer 5
-
$567 CAD
$406 USD
View
A
Retailer 6
-
$652 CAD
$467 USD
View
A
Retailer 7
-
$782 CAD
$560 USD
View
Retailer 8
-
$929 CAD
$665 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$975 CAD
$698 USD
View
A
Retailer 10
-
$1,013 CAD
£571 GBP
View
A
Retailer 11
-
$1,031 CAD
$738 USD
View
A
Retailer 12
-
$1,127 CAD
$807 USD
View
A
Retailer 13
-
$1,662 CAD
$1,190 USD
View
A
Retailer 14
-
$1,704 CAD
$1,220 USD
View
B+
Retailer 15
-
$1,746 CAD
$1,250 USD
View
B+
Retailer 16
-
$2,012 CAD
$1,440 USD
View
B+
Retailer 17
-
$2,231 CAD
$1,597 USD
View
B+
Retailer 18
-
$2,457 CAD
£1,385 GBP
View
Most Expensive
B
Do Amore Diamonds
27-52299484A · Oct 31
$4,065 CAD
$2,910 USD
View
18 more retailers have this diamond
Prices start from $457 CADSave up to $3,608 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
1.51ct Round
$457 CAD