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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG830676748

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG830676748

Diamond specifications and retailer prices

From $264 CAD
$188 USD
As of October 26, 2026
Save $1,379 CAD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,643 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG830676748 or 830676748. Listed at 19 retailers as of October 26, 2026, with prices from $264 to $1,643, a $1,379 spread on the same certified stone. Brilliant Earth lists it at $1,643. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830676748
Dimensions9.73 × 6.44 × 3.99 mm
L/W Ratio1.51
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm6.44 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830676748
Side View
Table 59.0%Crown 32.8°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.0%

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 26
Current: $1,643 CAD|Low: $264 CAD|High: $1,663 CAD|Avg: $808 CAD
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 13$264 CAD
Retailer 7$295 CAD
Retailer 6$306 CAD
Retailer 16$327 CAD
Retailer 17$327 CAD
Retailer 11$367 CAD
Retailer 15$452 CAD
Retailer 12$591 CAD
Retailer 9$617 CAD
Retailer 5$685 CAD
Retailer 3$690 CAD
Retailer 4$1,054 CAD
Retailer 14$1,056 CAD
Retailer 8$1,129 CAD
Retailer 10$1,306 CAD
Retailer 2$1,540 CAD
Retailer 18$1,623 CAD
Brilliant Earth$1,643 CAD

29 data points across 18 retailers

19 retailers$264 CAD to $1,643 CAD

A
Cheapest Retailer
-
$264 CAD
$188 USD
A
Retailer 2
-
$295 CAD
$210 USD
View
Final sale: no returns
A
Retailer 3
-
$306 CAD
$218 USD
View
A
Retailer 4
-
$327 CAD
$233 USD
View
A
Retailer 5
-
$327 CAD
$233 USD
View
A
Retailer 6
-
$343 CAD
$244 USD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$367 CAD
£206 GBP
View
B+
Retailer 8
-
$452 CAD
$322 USD
View
A
Retailer 9
-
$591 CAD
£331 GBP
View
A
Retailer 10
-
$617 CAD
€418 EUR
View
Price last confirmed 10 days ago
A
Retailer 11
-
$685 CAD
$488 USD
View
A
Retailer 12
-
$690 CAD
$491 USD
View
B+
Retailer 13
-
$1,054 CAD
$750 USD
View
B
Retailer 14
-
$1,056 CAD
$752 USD
View
B+
Retailer 15
-
$1,129 CAD
$804 USD
View
B+
Retailer 16
-
$1,306 CAD
$930 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$1,540 CAD
£863 GBP
View
B
Retailer 18
-
$1,623 CAD
$1,156 USD
View
Most Expensive
B
Brilliant Earth
21155010A · Oct 28
$1,643 CAD
$1,170 USD
View
18 more retailers have this diamond
Prices start from $264 CADSave up to $1,379 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 Oval
$264 CAD