CaratHunter
Plans
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 HK$1,546 HKD
$197 USD
As of October 29, 2026
Save HK$8,739 HKD (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$17,654 HKD 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 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: HK$17,654 HKD|Low: HK$1,546 HKD|High: HK$17,654 HKD|Avg: HK$7,266 HKD
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 9HK$1,546 HKD
Retailer 3HK$3,146 HKD
Retailer 10HK$3,146 HKD
Retailer 6HK$3,649 HKD
Retailer 11HK$7,514 HKD
Retailer 8HK$7,925 HKD
Retailer 5HK$8,480 HKD
Retailer 2HK$8,631 HKD
Retailer 4HK$8,631 HKD
Retailer 7HK$9,038 HKD
Do Amore DiamondsHK$17,654 HKD

17 data points across 11 retailers

10 retailersHK$1,546 HKD to HK$10,285 HKD

A
Cheapest Retailer
-
HK$1,546 HKD
$197 USD
B+
Retailer 2
-
HK$3,146 HKD
$401 USD
View
B+
Retailer 3
-
HK$3,649 HKD
$465 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
HK$7,514 HKD
CA$1,330 CAD
View
B
Retailer 5
-
HK$8,480 HKD
$1,081 USD
View
B
Retailer 6
-
HK$8,631 HKD
$1,100 USD
View
B
Retailer 7
-
HK$8,631 HKD
$1,100 USD
View
B
Retailer 8
-
HK$9,038 HKD
£907 GBP
View
Price last confirmed 11 days ago
B
Retailer 9
-
HK$10,285 HKD
£1,032 GBP
View
Most Expensive
B
Do Amore Diamonds
32-311690150 · Oct 28
HK$17,654 HKD
$2,250 USD
View
Price under review
9 more retailers have this diamond
Prices start from HK$1,546 HKDSave up to HK$8,739 HKD

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
HK$1,546 HKD