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1.64ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG12279308

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12279308

Diamond specifications and retailer prices

From HK$3,389 HKD
$432 USD
As of November 1, 2026
Save HK$21,246 HKD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$24,635 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.64ct lab-grown round diamond

This 1.64ct 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 LG12279308 or 12279308. Listed at 11 retailers as of October 31, 2026, with prices from HK$3,389 to HK$24,635, a HK$21,246 spread on the same certified stone. Do Amore Diamonds lists it at HK$24,635. 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

1.64
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12279308
Dimensions7.59 × 7.61 × 4.64 mm
L/W Ratio1.00
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
7.59 mm7.61 mm1.64 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12279308
Side View
Table 59.5%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

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$24,635 HKD|Low: HK$3,389 HKD|High: HK$24,635 HKD|Avg: HK$8,836 HKD|+0.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6HK$3,389 HKD
Retailer 8HK$4,245 HKD
Retailer 9HK$4,629 HKD
Retailer 11HK$5,945 HKD
Retailer 4HK$6,121 HKD
Retailer 3HK$6,660 HKD
Retailer 5HK$7,061 HKD
Retailer 7HK$10,074 HKD
Retailer 10HK$10,396 HKD
Retailer 2HK$14,817 HKD
Do Amore DiamondsHK$24,635 HKD

11 data points across 11 retailers

11 retailersHK$3,389 HKD to HK$24,635 HKD

B+
Cheapest Retailer
-
HK$3,389 HKD
$432 USD
A
Retailer 2
-
HK$4,245 HKD
$541 USD
View
A
Retailer 3
-
HK$4,629 HKD
$590 USD
View
A
Retailer 4
-
HK$5,945 HKD
$758 USD
View
A
Retailer 5
-
HK$6,121 HKD
£614 GBP
View
A
Retailer 6
-
HK$6,660 HKD
$849 USD
View
A
Retailer 7
-
HK$7,061 HKD
$900 USD
View
A
Retailer 8
-
HK$10,074 HKD
$1,284 USD
View
A
Retailer 9
-
HK$10,396 HKD
$1,325 USD
View
B+
Retailer 10
-
HK$14,817 HKD
£1,487 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DBBFF0559 · Oct 31
HK$24,635 HKD
$3,140 USD
View
10 more retailers have this diamond
Prices start from HK$3,389 HKDSave up to HK$21,246 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
1.64ct Round
HK$3,389 HKD