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Radiant|Lab Grown|IGI

1.70ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG620454779

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

Certificate IGI LG620454779

Diamond specifications and retailer prices

From HK$1,420 HKD
$181 USD
As of October 27, 2026
Save HK$12,232 HKD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$13,652 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG620454779 or 620454779. Listed at 9 retailers as of October 27, 2026, with prices from HK$1,420 to HK$13,652, a HK$12,232 spread on the same certified stone. Do Amore Diamonds lists it at HK$13,652. 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 angle43.2°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620454779
Dimensions8.48 × 5.85 × 3.98 mm
L/W Ratio1.45
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
8.48 mm5.85 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620454779
Side View
Table 66.0%Crown 43.2°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.0%

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 27
Current: HK$13,652 HKD|Low: HK$1,420 HKD|High: HK$14,201 HKD|Avg: HK$6,066 HKD|-3.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 25, 2026
Retailer 8HK$1,420 HKD
Retailer 5HK$1,648 HKD
Retailer 7HK$3,115 HKD
Retailer 12HK$3,313 HKD
Retailer 3HK$4,237 HKD
Retailer 4HK$5,281 HKD
Retailer 6HK$5,987 HKD
Retailer 11HK$6,049 HKD
Retailer 9HK$6,253 HKD
Retailer 2HK$9,108 HKD
Retailer 10HK$9,808 HKD
Do Amore DiamondsHK$13,652 HKD

16 data points across 12 retailers

9 retailersHK$1,420 HKD to HK$13,652 HKD

A
Cheapest Retailer
-
HK$1,420 HKD
$181 USD
A
Retailer 2
-
HK$1,648 HKD
$210 USD
View
B+
Retailer 3
-
HK$3,115 HKD
$397 USD
View
Retailer 4
-
HK$5,987 HKD
$763 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$6,253 HKD
$797 USD
View
B
Retailer 6
-
HK$8,503 HKD
£853 GBP
View
Retailer 7
-
HK$9,108 HKD
£914 GBP
View
Price last confirmed 7 days ago
B
Retailer 8
-
HK$9,808 HKD
$1,250 USD
View
Most Expensive
B
Do Amore Diamonds
27-E06B8DF26 · Oct 29
HK$13,652 HKD
$1,740 USD
View
8 more retailers have this diamond
Prices start from HK$1,420 HKDSave up to HK$12,232 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$1,420 HKD