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Round|Lab Grown|IGI

1.64ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG520293686

Shape and cutting style on the report: Round brilliant

Certificate IGI LG520293686

Diamond specifications and retailer prices

From HK$2,801 HKD
$357 USD
As of November 1, 2026
Save HK$12,196 HKD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$24,872 HKD at Do Amore Diamonds · As of November 2, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG520293686 or 520293686. Listed at 20 retailers as of November 1, 2026, with a 435% 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

1.64
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520293686
Dimensions7.56 × 7.59 × 4.69 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.56 mm7.59 mm1.64 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520293686
Side View
Table 57.5%Crown 35.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.0%

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$24,872 HKD|Low: HK$2,801 HKD|High: HK$24,872 HKD|Avg: HK$8,090 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
Retailer 19
Retailer 20
November 2, 2026
Retailer 20HK$2,801 HKD
Retailer 18HK$3,248 HKD
Retailer 3HK$3,460 HKD
Retailer 16HK$3,468 HKD
Retailer 5HK$3,476 HKD
Retailer 17HK$3,476 HKD
Retailer 7HK$4,668 HKD
Retailer 8HK$5,610 HKD
Retailer 19HK$6,096 HKD
Retailer 10HK$6,171 HKD
Retailer 13HK$6,277 HKD
Retailer 12HK$6,795 HKD
Retailer 2HK$6,833 HKD
Retailer 14HK$7,375 HKD
Retailer 6HK$10,192 HKD
Retailer 9HK$10,812 HKD
Retailer 4HK$12,334 HKD
Retailer 11HK$13,538 HKD
Retailer 15HK$14,997 HKD
Do Amore DiamondsHK$24,872 HKD

17 data points across 20 retailers

20 retailersHK$2,801 HKD to HK$14,997 HKD

A
Cheapest Retailer
-
HK$2,801 HKD
$357 USD
A
Retailer 2
-
HK$3,248 HKD
$414 USD
View
A
Retailer 3
-
HK$3,460 HKD
$441 USD
View
B+
Retailer 4
-
HK$3,468 HKD
$442 USD
View
Retailer 5
-
HK$3,476 HKD
$443 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$3,476 HKD
$443 USD
View
B+
Retailer 7
-
HK$4,668 HKD
$595 USD
View
Retailer 8
-
HK$5,610 HKD
$715 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
HK$6,096 HKD
$777 USD
View
B+
Retailer 10
-
HK$6,171 HKD
$787 USD
View
B+
Retailer 11
-
HK$6,277 HKD
£630 GBP
View
B+
Retailer 12
-
HK$6,795 HKD
$866 USD
View
B+
Retailer 13
-
HK$6,833 HKD
£686 GBP
View
B+
Retailer 14
-
HK$7,375 HKD
$940 USD
View
B
Retailer 15
-
HK$10,192 HKD
$1,299 USD
View
B
Retailer 16
-
HK$10,812 HKD
$1,378 USD
View
B
Retailer 17
-
HK$12,334 HKD
$1,572 USD
View
B
Retailer 18
-
HK$13,538 HKD
$1,725 USD
View
B
Retailer 19
-
HK$14,997 HKD
£1,505 GBP
View
Most Expensive
Do Amore Diamonds
27-DB2CAF216 · Nov 2
HK$24,872 HKD
$3,170 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$2,801 HKDSave up to HK$12,196 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$2,801 HKD