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Round|Lab Grown|IGI

1.58ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG12255716

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12255716

Diamond specifications and retailer prices

From HK$3,240 HKD
$413 USD
As of November 1, 2026
Save HK$11,247 HKD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$24,086 HKD at Do Amore Diamonds · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12255716 or 12255716. Listed at 14 retailers as of November 1, 2026, with a 347% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12255716
Dimensions7.57 × 7.53 × 4.53 mm
L/W Ratio1.01
Culet sizePointed
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
7.57 mm7.53 mm1.58 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12255716
Side View
Table 60.5%Crown 34°Girdle: MED-UNDPavilion 40.9°Culet: NoneDepth 60.0%

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$24,086 HKD|Low: HK$2,267 HKD|High: HK$24,086 HKD|Avg: HK$8,591 HKD|+37.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9HK$2,267 HKD
Retailer 5HK$3,240 HKD
Retailer 6HK$5,398 HKD
Retailer 8HK$6,637 HKD
Retailer 2HK$6,690 HKD
Retailer 4HK$9,846 HKD
Retailer 10HK$10,411 HKD
Retailer 7HK$13,131 HKD
Retailer 3HK$14,488 HKD
Do Amore DiamondsHK$24,086 HKD

30 data points across 10 retailers

14 retailersHK$3,240 HKD to HK$14,488 HKD

Retailer 1
-
HK$1,828 HKD
$233 USD
Price last confirmed 41 days ago
Retailer 2
-
HK$2,118 HKD
$270 USD
View
Price last confirmed 41 days ago
Retailer 3
-
HK$2,236 HKD
$285 USD
View
Price last confirmed 41 days ago
A
Retailer 4
-
HK$3,240 HKD
$413 USD
View
B+
Retailer 5
-
HK$4,551 HKD
$580 USD
View
B
Retailer 6
-
HK$5,398 HKD
$688 USD
View
B
Retailer 7
-
HK$6,637 HKD
$846 USD
View
B
Retailer 8
-
HK$6,690 HKD
£671 GBP
View
Retailer 9
-
HK$8,034 HKD
$1,024 USD
View
Price last confirmed 42 days ago
B
Retailer 10
-
HK$9,846 HKD
$1,255 USD
View
B
Retailer 11
-
HK$10,411 HKD
$1,327 USD
View
B
Retailer 12
-
HK$13,131 HKD
$1,674 USD
View
C
Retailer 13
-
HK$14,488 HKD
£1,454 GBP
View
Most Expensive
Do Amore Diamonds
27-42F31B056 · Nov 2
HK$24,086 HKD
$3,070 USD
View
Price under review
13 more retailers have this diamond
Prices start from HK$3,240 HKDSave up to HK$11,247 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$3,240 HKD