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Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG617427460

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG617427460

Diamond specifications and retailer prices

From HK$1,412 HKD
$180 USD
As of November 2, 2026
Save HK$8,317 HKD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$9,729 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.7ct lab-grown radiant diamond

This 1.7ct lab-grown radiant 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 LG617427460 or 617427460. Listed at 14 retailers as of November 2, 2026, with prices from HK$1,412 to HK$9,729, a HK$8,317 spread on the same certified stone. Brilliant Earth lists it at HK$9,729. 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 angle43.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617427460
Dimensions8.33 × 5.89 × 4.02 mm
L/W Ratio1.41
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
8.33 mm5.89 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617427460
Side View
Table 65.0%Crown 43.1°Girdle: MediumPavilion 35.9°Culet: NoneDepth 68.3%

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 2
Current: HK$9,729 HKD|Low: HK$1,412 HKD|High: HK$11,141 HKD|Avg: HK$4,264 HKD|-12.7%
Brilliant Earth
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
November 3, 2026
Retailer 12HK$1,412 HKD
Retailer 9HK$1,640 HKD
Retailer 4HK$1,750 HKD
Retailer 5HK$1,750 HKD
Retailer 11HK$2,252 HKD
Retailer 3HK$3,099 HKD
Retailer 8HK$3,139 HKD
Retailer 2HK$3,152 HKD
Retailer 10HK$4,362 HKD
Retailer 14HK$4,433 HKD
Retailer 13HK$5,626 HKD
Retailer 6HK$5,939 HKD
Retailer 7HK$8,181 HKD
Brilliant EarthHK$9,729 HKD

38 data points across 14 retailers

14 retailersHK$1,412 HKD to HK$9,729 HKD

A
Cheapest Retailer
-
HK$1,412 HKD
$180 USD
A
Retailer 2
-
HK$1,640 HKD
$209 USD
View
A
Retailer 3
-
HK$1,750 HKD
$223 USD
View
Retailer 4
-
HK$1,750 HKD
$223 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
HK$3,099 HKD
$395 USD
View
A
Retailer 6
-
HK$3,139 HKD
€381 EUR
View
A
Retailer 7
-
HK$3,152 HKD
£316 GBP
View
A
Retailer 8
-
HK$4,362 HKD
$556 USD
View
A
Retailer 9
-
HK$4,433 HKD
$565 USD
View
B+
Retailer 10
-
HK$5,626 HKD
$717 USD
View
B+
Retailer 11
-
HK$5,939 HKD
$757 USD
View
B+
Retailer 12
-
HK$5,999 HKD
£602 GBP
View
B+
Retailer 13
-
HK$8,181 HKD
£821 GBP
View
Most Expensive
B
Brilliant Earth
9016409A · Nov 2
HK$9,729 HKD
$1,240 USD
View
13 more retailers have this diamond
Prices start from HK$1,412 HKDSave up to HK$8,317 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 Radiant
HK$1,412 HKD