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Radiant|Lab Grown|IGI

1.56ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG2517667860

Certificate IGI LG2517667860

Diamond specifications and retailer prices

From $500 CAD
$358 USD
As of October 27, 2026
Save $1,701 CAD (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,163 CAD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.56ct lab-grown radiant diamond

This 1.56ct 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 LG2517667860 or 2517667860. Listed at 5 retailers as of October 25, 2026, with a 340% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.56
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG2517667860
Dimensions8.29 × 5.82 × 3.90 mm
L/W Ratio1.42
Top View
8.29 mm5.82 mm1.56 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG2517667860
Side View
Table 66.0%CrownGirdlePavilionCuletDepth 67.0%

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 27
Current: $4,163 CAD|Low: $481 CAD|High: $4,163 CAD|Avg: $1,870 CAD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 8, 2026
Retailer 2$500 CAD
Retailer 4$580 CAD
Retailer 5$978 CAD
Retailer 6$1,326 CAD
Retailer 3$2,202 CAD
Retailer 7$2,675 CAD
Do Amore Diamonds$4,163 CAD

5 data points across 7 retailers

5 retailers$500 CAD to $2,202 CAD

A
Cheapest Retailer
-
$500 CAD
$358 USD
B+
Retailer 2
-
$580 CAD
$415 USD
View
B
Retailer 3
-
$978 CAD
$700 USD
View
C
Retailer 4
-
$2,202 CAD
$1,576 USD
View
Most Expensive
Do Amore Diamonds
7-1688583 · Oct 29
$4,163 CAD
$2,980 USD
View
Price under review
4 more retailers have this diamond
Prices start from $500 CADSave up to $1,701 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
1.56ct Radiant
$500 CAD