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Radiant|Lab Grown|IGI

1.00ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG500148420

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

Certificate IGI LG500148420

Diamond specifications and retailer prices

From HK$4,959 HKD
$632 USD
As of November 2, 2026
Save HK$4,433 HKD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,688 HKD at Friendly Diamonds · As of November 2, 2026
View at Friendly Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG500148420 or 500148420. Listed at 12 retailers as of November 1, 2026, with a 89% 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.2°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500148420
Dimensions6.84 × 4.94 × 3.44 mm
L/W Ratio1.38
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
6.84 mm4.94 mm1.00 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG500148420
Side View
Table 63.5%Crown 41.2°Girdle: THN-MEDPavilion 31.9°Culet: NoneDepth 69.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$14,688 HKD|Low: HK$4,755 HKD|High: HK$24,513 HKD|Avg: HK$9,687 HKD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6HK$4,959 HKD
Retailer 11HK$5,390 HKD
Retailer 3HK$5,547 HKD
Retailer 8HK$5,751 HKD
Retailer 7HK$6,905 HKD
Retailer 4HK$7,140 HKD
Retailer 2HK$9,180 HKD
Retailer 10HK$9,392 HKD
Friendly DiamondsHK$14,688 HKD
Retailer 9HK$16,163 HKD
Retailer 5HK$24,254 HKD

43 data points across 11 retailers

12 retailersHK$4,959 HKD to HK$9,392 HKD

B
Cheapest Retailer
-
HK$4,959 HKD
$632 USD
B
Retailer 2
-
HK$5,390 HKD
$687 USD
View
B
Retailer 3
-
HK$5,547 HKD
$707 USD
View
Final sale: no returns
Retailer 4
-
HK$5,751 HKD
$733 USD
View
Price last confirmed 17 days ago
B
Retailer 5
-
HK$5,751 HKD
$733 USD
View
B
Retailer 6
-
HK$6,905 HKD
$880 USD
View
B
Retailer 7
-
HK$7,140 HKD
$910 USD
View
B
Retailer 8
-
HK$9,180 HKD
£921 GBP
View
C
Retailer 9
-
HK$9,392 HKD
$1,197 USD
View
Most Expensive
Friendly Diamonds
1590590 · Nov 2
HK$14,688 HKD
$1,872 USD
View
Price under review
9 more retailers have this diamond
Prices start from HK$4,959 HKDSave up to HK$4,433 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$4,959 HKD