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Radiant|Lab Grown|GCAL

0.91ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • GCAL 311690150

Shape and cutting style on the report: Radiant brilliant

Certificate GCAL 311690150

Diamond specifications and retailer prices

From $276 CAD
$197 USD
As of October 27, 2026
Save $1,559 CAD (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,149 CAD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 311690150. Listed at 10 retailers as of October 27, 2026, with a 565% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.91
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle59°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 311690150
Dimensions6.84 × 4.88 × 3.02 mm
L/W Ratio1.40
Culet sizeNone
Top View
6.84 mm4.88 mm0.91 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 311690150
Side View
Table 64.0%Crown 39.5°Girdle: MED-MEDPavilion 59°Culet: NoneDepth 62.0%

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: $3,149 CAD|Low: $276 CAD|High: $3,149 CAD|Avg: $1,296 CAD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9$276 CAD
Retailer 3$561 CAD
Retailer 10$561 CAD
Retailer 6$651 CAD
Retailer 11$1,340 CAD
Retailer 8$1,414 CAD
Retailer 5$1,513 CAD
Retailer 2$1,540 CAD
Retailer 4$1,540 CAD
Retailer 7$1,612 CAD
Do Amore Diamonds$3,149 CAD

17 data points across 11 retailers

10 retailers$276 CAD to $1,835 CAD

A
Cheapest Retailer
-
$276 CAD
$197 USD
B+
Retailer 2
-
$561 CAD
$401 USD
View
B+
Retailer 3
-
$651 CAD
$465 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$1,340 CAD
View
B
Retailer 5
-
$1,513 CAD
$1,081 USD
View
B
Retailer 6
-
$1,540 CAD
$1,100 USD
View
B
Retailer 7
-
$1,540 CAD
$1,100 USD
View
B
Retailer 8
-
$1,612 CAD
£907 GBP
View
Price last confirmed 11 days ago
B
Retailer 9
-
$1,835 CAD
£1,032 GBP
View
Most Expensive
B
Do Amore Diamonds
32-311690150 · Oct 28
$3,149 CAD
$2,250 USD
View
Price under review
9 more retailers have this diamond
Prices start from $276 CADSave up to $1,559 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
0.91ct Radiant
$276 CAD