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Radiant|Lab Grown|IGI

1.58ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG640402420

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

Certificate IGI LG640402420

Diamond specifications and retailer prices

From HK$2,275 HKD
As of November 2, 2026
Save HK$20,949 HKD (90%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: HK$23,224 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.58ct lab-grown radiant diamond

This 1.58ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG640402420 or 640402420. Listed at 31 retailers as of November 2, 2026, with prices from HK$2,275 to HK$23,224, a HK$20,949 spread on the same certified stone. Brilliant Earth lists it at HK$23,224. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640402420
Dimensions8.41 × 5.93 × 3.88 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.41 mm5.93 mm1.58 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640402420
Side View
Table 63.0%Crown 30.8°Girdle: MediumPavilion 34.9°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$23,224 HKD|Low: HK$2,275 HKD|High: HK$26,755 HKD|Avg: HK$9,456 HKD|-13.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 4, 2026
Retailer 4HK$2,275 HKD
Retailer 21HK$2,715 HKD
Retailer 2HK$4,041 HKD
Retailer 12HK$4,111 HKD
Retailer 5HK$4,394 HKD
Retailer 10HK$4,888 HKD
Retailer 18HK$5,061 HKD
Retailer 17HK$5,375 HKD
Retailer 13HK$5,508 HKD
Retailer 6HK$6,708 HKD
Retailer 11HK$7,030 HKD
Retailer 20HK$7,265 HKD
Retailer 3HK$8,678 HKD
Retailer 8HK$10,859 HKD
Retailer 14HK$11,290 HKD
Retailer 7HK$11,596 HKD
Retailer 15HK$12,044 HKD
Retailer 16HK$12,491 HKD
Retailer 19HK$13,291 HKD
Retailer 22HK$19,262 HKD
Retailer 9HK$20,243 HKD
Brilliant EarthHK$23,224 HKD

39 data points across 22 retailers

31 retailersHK$2,275 HKD to HK$23,224 HKD

A
Cheapest Retailer
-
HK$2,275 HKD
Retailer 2
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HK$2,275 HKD
View
Price last confirmed 27 days ago
Retailer 3
-
HK$2,377 HKD
View
Price last confirmed 35 days ago
A
Retailer 4
-
HK$2,715 HKD
View
Final sale: no returns
Retailer 5
-
HK$2,754 HKD
View
Price last confirmed 38 days ago
Retailer 6
-
HK$2,825 HKD
View
Price last confirmed 32 days ago
Retailer 7
-
HK$2,903 HKD
View
Price last confirmed 36 days ago
A
Retailer 8
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HK$4,041 HKD
View
A
Retailer 9
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HK$4,111 HKD
View
A
Retailer 10
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HK$4,394 HKD
View
A
Retailer 11
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HK$4,888 HKD
View
A
Retailer 12
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HK$5,061 HKD
View
A
Retailer 13
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HK$5,375 HKD
View
Retailer 14
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HK$5,500 HKD
View
Price last confirmed 20 days ago
A
Retailer 15
-
HK$5,508 HKD
View
A
Retailer 16
-
HK$6,708 HKD
View
A
Retailer 17
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HK$7,030 HKD
View
A
Retailer 18
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HK$7,265 HKD
View
B+
Retailer 19
-
HK$8,678 HKD
View
Retailer 20
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HK$10,027 HKD
View
Price last confirmed 25 days ago
B+
Retailer 21
-
HK$10,027 HKD
View
Retailer 22
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HK$10,451 HKD
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Price last confirmed 35 days ago
B+
Retailer 23
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HK$10,859 HKD
View
B+
Retailer 24
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HK$11,290 HKD
View
B+
Retailer 25
-
HK$11,596 HKD
View
B+
Retailer 26
-
HK$12,044 HKD
View
B+
Retailer 27
-
HK$12,491 HKD
View
B+
Retailer 28
-
HK$13,291 HKD
View
B
Retailer 29
-
HK$19,262 HKD
View
B
Retailer 30
-
HK$20,243 HKD
View
Most Expensive
B
Brilliant Earth
11203816Y · Nov 2
HK$23,224 HKD
$2,960 USD
View
30 more retailers have this diamond
Prices start from HK$2,275 HKDSave up to HK$20,949 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
1.58ct Radiant
HK$2,275 HKD