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Radiant|Lab Grown|IGI

1.00ct G SI1 Radiant Lab Grown Diamond

GD • G/SI1 • IGI LG591307713

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

Certificate IGI LG591307713

Diamond specifications and retailer prices

From HK$2,776 HKD
€337 EUR
As of October 31, 2026
Save HK$142 HKD (5%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$3,295 HKD at Rare Carat · As of September 24, 2026
View at Rare Carat

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 standard cut grade and certified by IGI LG591307713 or 591307713. Listed at 4 retailers as of October 31, 2026, with a relatively tight 5% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591307713
Dimensions6.92 × 5.14 × 3.47 mm
L/W Ratio1.35
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
6.92 mm5.14 mm1.00 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591307713
Side View
Table 64.0%Crown 40°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 67.5%

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: Oct 31
Current: HK$3,295 HKD|Low: HK$1,240 HKD|High: HK$10,042 HKD|Avg: HK$3,574 HKD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12HK$1,240 HKD
Retailer 4HK$1,703 HKD
Retailer 10HK$1,773 HKD
Retailer 5HK$2,209 HKD
Retailer 6HK$2,400 HKD
Retailer 2HK$2,776 HKD
Retailer 7HK$2,810 HKD
Retailer 8HK$2,919 HKD
Rare CaratHK$3,295 HKD
Retailer 13HK$3,986 HKD
Retailer 3HK$5,283 HKD
Retailer 9HK$6,696 HKD
Retailer 11HK$10,042 HKD

14 data points across 13 retailers

4 retailersHK$2,776 HKD to HK$2,919 HKD

Retailer 1
-
HK$2,209 HKD
Price last confirmed 58 days ago
B+
Retailer 2
-
HK$2,776 HKD
€337 EUR
View
B+
Retailer 3
-
HK$2,919 HKD
$372 USD
View
Most Expensive
Rare Carat
2947708_l_591307713 · Sep 24
HK$3,295 HKD
$420 USD
View
Price last confirmed 38 days ago
3 more retailers have this diamond
Prices start from HK$2,776 HKDSave up to HK$142 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$2,776 HKD