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Radiant|Lab Grown|IGI

1.00ct I SI1 Radiant Lab Grown Diamond

GD • I/SI1 • IGI LG407932707

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

Certificate IGI LG407932707

Diamond specifications and retailer prices

From HK$4,702 HKD
As of November 6, 2026
Save HK$14,773 HKD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$30,647 HKD at MOH London · As of November 3, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG407932707 or 407932707. Listed at 11 retailers as of November 4, 2026, with a 314% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
I
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle48.5°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407932707
Dimensions6.67 × 4.61 × 3.52 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.67 mm4.61 mm1.00 ctI / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407932707
Side View
Table 65.0%Crown 48.5°Girdle: ThickPavilion 31°Culet: NoneDepth 76.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$30,647 HKD|Low: HK$4,702 HKD|High: HK$31,055 HKD|Avg: HK$14,274 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2HK$4,702 HKD
Retailer 6HK$7,790 HKD
Retailer 10HK$8,472 HKD
Retailer 11HK$8,723 HKD
Retailer 7HK$9,037 HKD
Retailer 12HK$10,424 HKD
Retailer 3HK$13,010 HKD
Retailer 8HK$14,436 HKD
Retailer 9HK$16,937 HKD
Retailer 5HK$19,476 HKD
Retailer 4HK$25,879 HKD
MOH LondonHK$30,647 HKD

17 data points across 12 retailers

11 retailersHK$4,702 HKD to HK$19,476 HKD

B+
Cheapest Retailer
-
HK$4,702 HKD
B
Retailer 2
-
HK$7,790 HKD
View
C
Retailer 3
-
HK$8,472 HKD
View
C
Retailer 4
-
HK$8,723 HKD
View
Final sale: no returns
Retailer 5
-
HK$9,037 HKD
View
Price last confirmed 26 days ago
C
Retailer 6
-
HK$9,037 HKD
View
C
Retailer 7
-
HK$10,424 HKD
View
C
Retailer 8
-
HK$14,436 HKD
View
C
Retailer 9
-
HK$16,937 HKD
View
C
Retailer 10
-
HK$19,476 HKD
View
Most Expensive
MOH London
LG407932707 · Nov 3
HK$30,647 HKD
£3,079 GBP
View
Price under review
10 more retailers have this diamond
Prices start from HK$4,702 HKDSave up to HK$14,773 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.

B+
1.00ct Radiant
HK$4,702 HKD