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Radiant|Lab Grown|IGI

1.72ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1

Diamond specifications and retailer prices

From $481 CAD
£271 GBP
As of October 30, 2026
Save $1,439 CAD (75%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,921 CAD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.72ct lab-grown radiant diamond

This 1.72ct 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. Listed at 3 retailers as of October 28, 2026, with prices from $481 to $1,921, a $1,439 spread on the same certified stone. Rare Carat lists it at $1,921. 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

1.72
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.76 × 5.89 × 3.93 mm
L/W Ratio1.49
Top View
8.76 mm5.89 mm1.72 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 66.7%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,921 CAD|Low: $474 CAD|High: $1,942 CAD|Avg: $1,022 CAD|-1.1%
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 2$481 CAD
Retailer 3$792 CAD
Rare Carat$1,921 CAD

13 data points across 3 retailers

3 retailers$481 CAD to $1,921 CAD

B+
Cheapest Retailer
-
$481 CAD
£271 GBP
B+
Retailer 2
-
$792 CAD
$567 USD
View
Most Expensive
C
Rare Carat
E41I-50C_l_629439991 · Oct 28
$1,921 CAD
$1,375 USD
View
2 more retailers have this diamond
Prices start from $481 CADSave up to $1,439 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+
1.72ct Radiant
$481 CAD