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1.58ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG12378004

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12378004

Diamond specifications and retailer prices

From HK$2,675 HKD
$341 USD
As of November 1, 2026
Save HK$21,097 HKD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$23,772 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12378004 or 12378004. Listed at 18 retailers as of October 31, 2026, with prices from HK$2,675 to HK$23,772, a HK$21,097 spread on the same certified stone. Do Amore Diamonds lists it at HK$23,772. 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

1.58
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12378004
Dimensions7.42 × 7.47 × 4.64 mm
L/W Ratio1.01
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.42 mm7.47 mm1.58 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12378004
Side View
Table 59.0%Crown 35.5°Girdle: MED-UNDPavilion 41.4°Culet: NoneDepth 62.2%

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: Nov 1
Current: HK$23,772 HKD|Low: HK$2,675 HKD|High: HK$23,772 HKD|Avg: HK$7,656 HKD
Do Amore Diamonds
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 17HK$2,675 HKD
Retailer 14HK$3,107 HKD
Retailer 12HK$3,280 HKD
Retailer 5HK$3,319 HKD
Retailer 13HK$3,319 HKD
Retailer 18HK$3,970 HKD
Retailer 6HK$4,511 HKD
Retailer 7HK$5,296 HKD
Retailer 9HK$5,727 HKD
Retailer 11HK$5,913 HKD
Retailer 15HK$5,939 HKD
Retailer 10HK$6,506 HKD
Retailer 16HK$9,737 HKD
Retailer 8HK$10,019 HKD
Retailer 4HK$11,776 HKD
Retailer 3HK$12,997 HKD
Retailer 2HK$14,318 HKD
Do Amore DiamondsHK$23,772 HKD

15 data points across 18 retailers

18 retailersHK$2,675 HKD to HK$23,772 HKD

A
Cheapest Retailer
-
HK$2,675 HKD
$341 USD
A
Retailer 2
-
HK$3,107 HKD
$396 USD
View
B+
Retailer 3
-
HK$3,280 HKD
$418 USD
View
A
Retailer 4
-
HK$3,319 HKD
$423 USD
View
Retailer 5
-
HK$3,319 HKD
$423 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$3,970 HKD
$506 USD
View
A
Retailer 7
-
HK$4,511 HKD
$575 USD
View
Retailer 8
-
HK$5,296 HKD
$675 USD
View
Price last confirmed 12 days ago
A
Retailer 9
-
HK$5,727 HKD
$730 USD
View
A
Retailer 10
-
HK$5,913 HKD
£593 GBP
View
A
Retailer 11
-
HK$5,939 HKD
$757 USD
View
A
Retailer 12
-
HK$6,506 HKD
$829 USD
View
A
Retailer 13
-
HK$9,737 HKD
$1,241 USD
View
A
Retailer 14
-
HK$10,019 HKD
$1,277 USD
View
B+
Retailer 15
-
HK$11,776 HKD
$1,501 USD
View
B+
Retailer 16
-
HK$12,997 HKD
$1,657 USD
View
B+
Retailer 17
-
HK$14,318 HKD
£1,437 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9CA57A5A7 · Oct 31
HK$23,772 HKD
$3,030 USD
View
17 more retailers have this diamond
Prices start from HK$2,675 HKDSave up to HK$21,097 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 Round
HK$2,675 HKD