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Radiant|Lab Grown|IGI

1.55ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG514271363

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

Certificate IGI LG514271363

Diamond specifications and retailer prices

From $775 CAD
$555 USD
As of October 30, 2026
Save $2,815 CAD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,591 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG514271363 or 514271363. Listed at 14 retailers as of October 26, 2026, with prices from $775 to $3,591, a $2,815 spread on the same certified stone. MOH London lists it at $3,591. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514271363
Dimensions7.49 × 5.78 × 3.93 mm
L/W Ratio1.30
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
7.49 mm5.78 mm1.55 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514271363
Side View
Table 65.5%Crown 42.2°Girdle: MediumPavilion 30.2°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,591 CAD|Low: $555 CAD|High: $3,630 CAD|Avg: $1,434 CAD|-0.9%
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
October 31, 2026
Retailer 10$693 CAD
Retailer 3$775 CAD
Retailer 4$775 CAD
Retailer 11$859 CAD
Retailer 5$862 CAD
Retailer 9$1,055 CAD
Retailer 6$1,250 CAD
Retailer 13$1,337 CAD
Retailer 2$1,417 CAD
Retailer 7$1,648 CAD
Retailer 12$2,259 CAD
Retailer 8$2,309 CAD
MOH London$3,591 CAD

43 data points across 13 retailers

14 retailers$775 CAD to $3,591 CAD

Retailer 1
-
$693 CAD
$496 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$775 CAD
$555 USD
View
Final sale: no returns
B+
Retailer 3
-
$775 CAD
$555 USD
View
B+
Retailer 4
-
$859 CAD
$615 USD
View
B+
Retailer 5
-
$862 CAD
$617 USD
View
B
Retailer 6
-
$1,055 CAD
$755 USD
View
Retailer 7
-
$1,250 CAD
€852 EUR
View
Price last confirmed 7 days ago
B
Retailer 8
-
$1,337 CAD
$957 USD
View
B
Retailer 9
-
$1,417 CAD
£799 GBP
View
B
Retailer 10
-
$1,648 CAD
$1,180 USD
View
B
Retailer 11
-
$1,997 CAD
£1,126 GBP
View
C
Retailer 12
-
$2,259 CAD
$1,617 USD
View
C
Retailer 13
-
$2,309 CAD
$1,653 USD
View
Most Expensive
B
MOH London
LG514271363 · Oct 26
$3,591 CAD
£2,024 GBP
View
13 more retailers have this diamond
Prices start from $775 CADSave up to $2,815 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.

B+
1.55ct Radiant
$775 CAD