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1.70ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG642471180

Shape and cutting style on the report: Round brilliant

Certificate IGI LG642471180

Diamond specifications and retailer prices

From HK$1,852 HKD
$236 USD
As of November 1, 2026
Save HK$7,356 HKD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,207 HKD at MOH London · As of October 26, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG642471180 or 642471180. Listed at 16 retailers as of October 26, 2026, with prices from HK$1,852 to HK$9,207, a HK$7,356 spread on the same certified stone. MOH London lists it at HK$9,207. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642471180
Dimensions7.76 × 7.71 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.76 mm7.71 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642471180
Side View
Table 60.0%Crown 34°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.4%

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$9,207 HKD|Low: HK$1,852 HKD|High: HK$9,307 HKD|Avg: HK$5,138 HKD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10HK$1,852 HKD
Retailer 11HK$2,299 HKD
Retailer 12HK$3,617 HKD
Retailer 3HK$3,884 HKD
Retailer 5HK$4,215 HKD
Retailer 6HK$4,291 HKD
Retailer 4HK$4,331 HKD
Retailer 8HK$4,580 HKD
Retailer 2HK$6,104 HKD
Retailer 9HK$6,630 HKD
Retailer 7HK$8,631 HKD
MOH LondonHK$9,207 HKD

43 data points across 12 retailers

16 retailersHK$1,852 HKD to HK$9,207 HKD

A
Cheapest Retailer
-
HK$1,852 HKD
$236 USD
A
Retailer 2
-
HK$2,150 HKD
$274 USD
View
Retailer 3
-
HK$2,299 HKD
$293 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$2,299 HKD
$293 USD
View
B+
Retailer 5
-
HK$3,884 HKD
$495 USD
View
A
Retailer 6
-
HK$4,166 HKD
$531 USD
View
A
Retailer 7
-
HK$4,215 HKD
£423 GBP
View
A
Retailer 8
-
HK$4,291 HKD
£431 GBP
View
A
Retailer 9
-
HK$4,331 HKD
$552 USD
View
B+
Retailer 10
-
HK$4,580 HKD
A$898 AUD
View
B+
Retailer 11
-
HK$6,104 HKD
$778 USD
View
Retailer 12
-
HK$6,373 HKD
$812 USD
View
Price last confirmed 50 days ago
Retailer 13
-
HK$6,630 HKD
$845 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
HK$7,375 HKD
$940 USD
View
B
Retailer 15
-
HK$8,631 HKD
$1,100 USD
View
Most Expensive
B
MOH London
LG642471180 · Oct 26
HK$9,207 HKD
£924 GBP
View
15 more retailers have this diamond
Prices start from HK$1,852 HKDSave up to HK$7,356 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$1,852 HKD