CaratHunter
Plans
Round|Lab Grown|IGI

1.21ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG567369590

Shape and cutting style on the report: Round brilliant

Certificate IGI LG567369590

Diamond specifications and retailer prices

From HK$1,294 HKD
As of November 5, 2026
Save HK$6,188 HKD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$7,483 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG567369590 or 567369590. Listed at 17 retailers as of November 4, 2026, with prices from HK$1,294 to HK$7,483, a HK$6,188 spread on the same certified stone. MOH London lists it at HK$7,483. 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

1.21
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567369590
Dimensions6.85 × 6.81 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.85 mm6.81 mm1.21 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567369590
Side View
Table 57.5%Crown 35.3°Girdle: MED-STKPavilion 41°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: Nov 5
Current: HK$7,483 HKD|Low: HK$1,240 HKD|High: HK$7,592 HKD|Avg: HK$3,513 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7HK$1,294 HKD
Retailer 8HK$1,608 HKD
Retailer 9HK$2,197 HKD
Retailer 4HK$2,777 HKD
Retailer 2HK$2,809 HKD
Retailer 3HK$3,099 HKD
Retailer 10HK$3,562 HKD
Retailer 5HK$5,288 HKD
Retailer 6HK$5,452 HKD
MOH LondonHK$7,483 HKD

44 data points across 10 retailers

17 retailersHK$1,294 HKD to HK$7,483 HKD

A
Cheapest Retailer
-
HK$1,294 HKD
A
Retailer 2
-
HK$1,444 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,498 HKD
View
A
Retailer 4
-
HK$1,608 HKD
View
Retailer 5
-
HK$1,608 HKD
View
Price last confirmed 12 days ago
A
Retailer 6
-
HK$1,804 HKD
View
B+
Retailer 7
-
HK$2,197 HKD
View
A
Retailer 8
-
HK$2,777 HKD
View
A
Retailer 9
-
HK$2,809 HKD
View
A
Retailer 10
-
HK$2,911 HKD
View
A
Retailer 11
-
HK$3,099 HKD
View
Retailer 12
-
HK$3,530 HKD
View
Price last confirmed 47 days ago
B+
Retailer 13
-
HK$3,562 HKD
View
B
Retailer 14
-
HK$5,162 HKD
View
B
Retailer 15
-
HK$5,288 HKD
View
B
Retailer 16
-
HK$5,452 HKD
View
Most Expensive
B
MOH London
LG567369590 · Nov 4
HK$7,483 HKD
£751 GBP
View
16 more retailers have this diamond
Prices start from HK$1,294 HKDSave up to HK$6,188 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
1.21ct Round
HK$1,294 HKD