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Radiant|Lab Grown|IGI

1.00ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG570331905

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

Certificate IGI LG570331905

Diamond specifications and retailer prices

From HK$871 HKD
$111 USD
As of October 30, 2026
Save HK$8,167 HKD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$9,037 HKD at MOH London · As of October 26, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG570331905 or 570331905. Listed at 19 retailers as of October 26, 2026, with prices from HK$871 to HK$9,037, a HK$8,167 spread on the same certified stone. MOH London lists it at HK$9,037. 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

1.00
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle27.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570331905
Dimensions8.10 × 4.63 × 3.06 mm
L/W Ratio1.75
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.10 mm4.63 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570331905
Side View
Table 61.5%Crown 35.5°Girdle: MediumPavilion 27.4°Culet: NoneDepth 66.1%

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 30
Current: HK$9,037 HKD|Low: HK$698 HKD|High: HK$9,137 HKD|Avg: HK$2,627 HKD|+0.1%
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 31, 2026
Retailer 10HK$871 HKD
Retailer 5HK$981 HKD
Retailer 3HK$1,012 HKD
Retailer 4HK$1,153 HKD
Retailer 12HK$1,153 HKD
Retailer 8HK$2,002 HKD
Retailer 7HK$2,054 HKD
Retailer 13HK$2,142 HKD
Retailer 2HK$2,156 HKD
Retailer 6HK$3,036 HKD
Retailer 14HK$3,476 HKD
Retailer 9HK$3,876 HKD
Retailer 11HK$4,237 HKD
MOH LondonHK$9,037 HKD

44 data points across 14 retailers

19 retailersHK$871 HKD to HK$9,037 HKD

A
Cheapest Retailer
-
HK$871 HKD
$111 USD
A
Retailer 2
-
HK$981 HKD
$125 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,012 HKD
$129 USD
View
A
Retailer 4
-
HK$1,153 HKD
$147 USD
View
A
Retailer 5
-
HK$1,153 HKD
$147 USD
View
A
Retailer 6
-
HK$1,306 HKD
View
Retailer 7
-
HK$2,002 HKD
€243 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
HK$2,054 HKD
£206 GBP
View
A
Retailer 9
-
HK$2,134 HKD
$272 USD
View
B+
Retailer 10
-
HK$2,142 HKD
$273 USD
View
A
Retailer 11
-
HK$2,156 HKD
£216 GBP
View
B+
Retailer 12
-
HK$3,036 HKD
$387 USD
View
B+
Retailer 13
-
HK$3,042 HKD
SGD 524 SGD
View
B+
Retailer 14
-
HK$3,476 HKD
$443 USD
View
B+
Retailer 15
-
HK$3,667 HKD
£368 GBP
View
B+
Retailer 16
-
HK$3,876 HKD
$494 USD
View
B
Retailer 17
-
HK$4,038 HKD
£405 GBP
View
B
Retailer 18
-
HK$4,237 HKD
$540 USD
View
Most Expensive
B
MOH London
LG570331905 · Oct 26
HK$9,037 HKD
£907 GBP
View
18 more retailers have this diamond
Prices start from HK$871 HKDSave up to HK$8,167 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
1.00ct Radiant
HK$871 HKD