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 €177 EUR
$197 USD
As of October 29, 2026
Save €1,001 EUR (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,022 EUR at Do Amore Diamonds · As of October 30, 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 11 retailers as of October 28, 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
Colour
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 29
Current: €2,022 EUR|Low: €177 EUR|High: €2,022 EUR|Avg: €832 EUR
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€177 EUR
Retailer 3€360 EUR
Retailer 10€360 EUR
Retailer 6€418 EUR
Retailer 11€860 EUR
Retailer 8€907 EUR
Retailer 5€971 EUR
Retailer 2€988 EUR
Retailer 4€988 EUR
Retailer 7€1,035 EUR
Do Amore Diamonds€2,022 EUR

17 data points across 11 retailers

11 retailers€177 EUR to €1,178 EUR

A
Cheapest Retailer
-
€177 EUR
$197 USD
B+
Retailer 2
-
€360 EUR
$401 USD
View
Retailer 3
-
€418 EUR
$465 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
€860 EUR
CA$1,330 CAD
View
B
Retailer 5
-
€907 EUR
$1,010 USD
View
B
Retailer 6
-
€971 EUR
$1,081 USD
View
B
Retailer 7
-
€988 EUR
$1,100 USD
View
B
Retailer 8
-
€988 EUR
$1,100 USD
View
Retailer 9
-
€1,035 EUR
£907 GBP
View
Price last confirmed 12 days ago
B
Retailer 10
-
€1,178 EUR
£1,032 GBP
View
Most Expensive
Do Amore Diamonds
32-311690150 · Oct 30
€2,022 EUR
$2,250 USD
View
Price under review
10 more retailers have this diamond
Prices start from €177 EURSave up to €1,001 EUR

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
€177 EUR