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Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1

Diamond specifications and retailer prices

From HK$2,505 HKD
£251 GBP
As of October 29, 2026
Save HK$5,624 HKD (69%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$8,129 HKD at Blue Nile · As of October 29, 2026
View at Blue Nile

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. Listed at 2 retailers as of October 29, 2026, with prices from HK$2,505 to HK$8,129, a HK$5,624 spread on the same certified stone. Blue Nile lists it at HK$8,129. 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
OriginLab Grown
Grading LabIGI
Dimensions8.33 × 5.86 × 3.98 mm
L/W Ratio1.42
Top View
8.33 mm5.86 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 63.0%CrownGirdle: MediumPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: HK$8,129 HKD|Low: HK$1,475 HKD|High: HK$8,129 HKD|Avg: HK$4,097 HKD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 4HK$1,475 HKD
Retailer 5HK$1,710 HKD
Retailer 2HK$2,505 HKD
Retailer 3HK$6,497 HKD
Blue NileHK$8,129 HKD

18 data points across 5 retailers

2 retailersHK$2,505 HKD to HK$8,129 HKD

A
Cheapest Retailer
-
HK$2,505 HKD
£251 GBP
Most Expensive
B
Blue Nile
20299559 · Oct 29
HK$8,129 HKD
$1,036 USD
View
1 more retailer has this diamond
Prices start from HK$2,505 HKDSave up to HK$5,624 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$2,505 HKD