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Round|Lab Grown|IGI

1.70ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG451055650

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055650

Diamond specifications and retailer prices

From HK$8,268 HKD
As of November 5, 2026
Save HK$24,250 HKD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$32,518 HKD at MOH London · As of November 3, 2026
View at MOH London

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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055650 or 451055650. Listed at 9 retailers as of November 3, 2026, with prices from HK$8,268 to HK$32,518, a HK$24,250 spread on the same certified stone. MOH London lists it at HK$32,518. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055650
Dimensions7.67 × 7.70 × 4.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.67 mm7.70 mm1.70 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055650
Side View
Table 54.0%Crown 34.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$32,518 HKD|Low: HK$8,268 HKD|High: HK$32,956 HKD|Avg: HK$17,621 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 3HK$8,268 HKD
Retailer 4HK$9,585 HKD
Retailer 2HK$10,972 HKD
Retailer 7HK$13,896 HKD
Retailer 5HK$15,291 HKD
Retailer 6HK$20,040 HKD
MOH LondonHK$32,518 HKD

15 data points across 7 retailers

9 retailersHK$8,268 HKD to HK$32,518 HKD

A
Cheapest Retailer
-
HK$8,268 HKD
A
Retailer 2
-
HK$8,997 HKD
View
Retailer 3
-
HK$9,585 HKD
View
Price last confirmed 25 days ago
A
Retailer 4
-
HK$9,585 HKD
View
B+
Retailer 5
-
HK$10,972 HKD
View
B+
Retailer 6
-
HK$15,291 HKD
View
B
Retailer 7
-
HK$17,971 HKD
View
B
Retailer 8
-
HK$20,040 HKD
View
Most Expensive
B
MOH London
LG451055650 · Nov 3
HK$32,518 HKD
£3,267 GBP
View
8 more retailers have this diamond
Prices start from HK$8,268 HKDSave up to HK$24,250 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$8,268 HKD