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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG644487427

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG644487427

Diamond specifications and retailer prices

From HK$1,232 HKD
$157 USD
As of October 25, 2026
Save HK$9,092 HKD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$10,324 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG644487427 or 644487427. Listed at 15 retailers as of October 25, 2026, with prices from HK$1,232 to HK$10,324, a HK$9,092 spread on the same certified stone. MOH London lists it at HK$10,324. 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

1.05
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644487427
Dimensions7.40 × 4.89 × 3.34 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm4.89 mm1.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644487427
Side View
Table 65.0%Crown 45.1°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.3%

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 25
Current: HK$10,324 HKD|Low: HK$1,153 HKD|High: HK$10,393 HKD|Avg: HK$3,126 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 3HK$1,153 HKD
Retailer 4HK$1,216 HKD
Retailer 8HK$1,232 HKD
Retailer 12HK$1,604 HKD
Retailer 2HK$2,043 HKD
Retailer 7HK$2,337 HKD
Retailer 13HK$2,346 HKD
Retailer 6HK$2,370 HKD
Retailer 11HK$2,414 HKD
Retailer 10HK$3,649 HKD
Retailer 5HK$3,774 HKD
Retailer 9HK$4,174 HKD
Retailer 14HK$4,629 HKD
MOH LondonHK$10,324 HKD

35 data points across 14 retailers

15 retailersHK$1,232 HKD to HK$10,324 HKD

Retailer 1
-
HK$1,153 HKD
$147 USD
Price last confirmed 32 days ago
Retailer 2
-
HK$1,216 HKD
$155 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
HK$1,232 HKD
$157 USD
View
Retailer 4
-
HK$1,604 HKD
£161 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
HK$2,043 HKD
£205 GBP
View
A
Retailer 6
-
HK$2,337 HKD
£235 GBP
View
B+
Retailer 7
-
HK$2,346 HKD
$299 USD
View
B+
Retailer 8
-
HK$2,370 HKD
$302 USD
View
B+
Retailer 9
-
HK$2,414 HKD
€293 EUR
View
Retailer 10
-
HK$3,649 HKD
$465 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
HK$3,774 HKD
$481 USD
View
B
Retailer 12
-
HK$4,174 HKD
$532 USD
View
B+
Retailer 13
-
HK$4,505 HKD
£452 GBP
View
B
Retailer 14
-
HK$4,629 HKD
$590 USD
View
Most Expensive
B
MOH London
LG644487427 · Oct 29
HK$10,324 HKD
£1,036 GBP
View
14 more retailers have this diamond
Prices start from HK$1,232 HKDSave up to HK$9,092 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
1.05ct Radiant
HK$1,232 HKD