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Round|Lab Grown|IGI

1.70ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG470151246

Shape and cutting style on the report: Round brilliant

Certificate IGI LG470151246

Diamond specifications and retailer prices

From HK$3,389 HKD
$432 USD
As of October 30, 2026
Save HK$17,323 HKD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$20,713 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG470151246 or 470151246. Listed at 12 retailers as of October 30, 2026, with prices from HK$3,389 to HK$20,713, a HK$17,323 spread on the same certified stone. Do Amore Diamonds lists it at HK$20,713. 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

1.70
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG470151246
Dimensions7.68 × 7.64 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.68 mm7.64 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG470151246
Side View
Table 57.5%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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: Oct 30
Current: HK$20,713 HKD|Low: HK$2,260 HKD|High: HK$20,713 HKD|Avg: HK$6,753 HKD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7HK$2,260 HKD
Retailer 4HK$3,389 HKD
Retailer 9HK$4,679 HKD
Retailer 5HK$4,739 HKD
Retailer 6HK$6,626 HKD
Retailer 3HK$8,889 HKD
Retailer 8HK$10,348 HKD
Retailer 2HK$12,864 HKD
Do Amore DiamondsHK$20,713 HKD

15 data points across 9 retailers

12 retailersHK$3,389 HKD to HK$20,713 HKD

Retailer 1
-
HK$1,820 HKD
$232 USD
Price last confirmed 39 days ago
Retailer 2
-
HK$2,110 HKD
$269 USD
View
Price last confirmed 39 days ago
Retailer 3
-
HK$2,228 HKD
$284 USD
View
Price last confirmed 39 days ago
A
Retailer 4
-
HK$3,389 HKD
$432 USD
View
A
Retailer 5
-
HK$4,119 HKD
$525 USD
View
B+
Retailer 6
-
HK$4,739 HKD
$604 USD
View
A
Retailer 7
-
HK$6,626 HKD
$845 USD
View
Retailer 8
-
HK$8,018 HKD
$1,022 USD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
HK$8,889 HKD
$1,133 USD
View
B+
Retailer 10
-
HK$10,348 HKD
$1,319 USD
View
B
Retailer 11
-
HK$12,864 HKD
£1,291 GBP
View
Most Expensive
B
Do Amore Diamonds
27-831F1B287 · Oct 31
HK$20,713 HKD
$2,640 USD
View
11 more retailers have this diamond
Prices start from HK$3,389 HKDSave up to HK$17,323 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
1.70ct Round
HK$3,389 HKD