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Radiant|Lab Grown|IGI

1.51ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG778659554

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

Certificate IGI LG778659554

Diamond specifications and retailer prices

From $286 CAD
$205 USD
As of November 2, 2026
Save $1,373 CAD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,659 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778659554 or 778659554. Listed at 17 retailers as of November 2, 2026, with prices from $286 to $1,659, a $1,373 spread on the same certified stone. MOH London lists it at $1,659. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778659554
Dimensions8.20 × 5.60 × 3.83 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm5.60 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778659554
Side View
Table 65.0%Crown 42.4°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 68.4%

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: Nov 2
Current: $1,659 CAD|Low: $278 CAD|High: $1,670 CAD|Avg: $819 CAD|+14.2%
MOH London
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
November 2, 2026
Retailer 17$286 CAD
Retailer 16$319 CAD
Retailer 12$331 CAD
Retailer 6$355 CAD
Retailer 8$356 CAD
Retailer 11$612 CAD
Retailer 3$614 CAD
Retailer 14$686 CAD
Retailer 15$818 CAD
Retailer 10$827 CAD
Retailer 2$934 CAD
Retailer 13$1,140 CAD
Retailer 4$1,154 CAD
Retailer 7$1,195 CAD
Retailer 5$1,215 CAD
Retailer 9$1,384 CAD
MOH London$1,659 CAD

35 data points across 17 retailers

17 retailers$286 CAD to $1,659 CAD

A
Cheapest Retailer
-
$286 CAD
$205 USD
A
Retailer 2
-
$319 CAD
$228 USD
View
Final sale: no returns
A
Retailer 3
-
$331 CAD
$237 USD
View
A
Retailer 4
-
$355 CAD
$254 USD
View
Retailer 5
-
$356 CAD
$255 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$612 CAD
ZAR 7,079 ZAR
View
B+
Retailer 7
-
$614 CAD
$439 USD
View
A
Retailer 8
-
$686 CAD
$491 USD
View
A
Retailer 9
-
$818 CAD
$585 USD
View
A
Retailer 10
-
$827 CAD
A$910 AUD
View
B+
Retailer 11
-
$934 CAD
$668 USD
View
B+
Retailer 12
-
$1,140 CAD
$816 USD
View
B+
Retailer 13
-
$1,154 CAD
SGD 1,116 SGD
View
B+
Retailer 14
-
$1,195 CAD
$855 USD
View
B+
Retailer 15
-
$1,215 CAD
$869 USD
View
B+
Retailer 16
-
$1,384 CAD
$990 USD
View
Most Expensive
B
MOH London
LG778659554 · Nov 2
$1,659 CAD
£935 GBP
View
16 more retailers have this diamond
Prices start from $286 CADSave up to $1,373 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 Radiant
$286 CAD