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Radiant|Lab Grown|IGI

1.71ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG578353116

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

Certificate IGI LG578353116

Diamond specifications and retailer prices

From HK$1,428 HKD
$182 USD
As of October 27, 2026
Save HK$12,303 HKD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$13,731 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown radiant diamond

This 1.71ct 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 LG578353116 or 578353116. Listed at 9 retailers as of October 27, 2026, with prices from HK$1,428 to HK$13,731, a HK$12,303 spread on the same certified stone. Do Amore Diamonds lists it at HK$13,731. 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

1.71
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578353116
Dimensions8.51 × 5.72 × 3.89 mm
L/W Ratio1.49
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
8.51 mm5.72 mm1.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578353116
Side View
Table 65.0%Crown 46.1°Girdle: MediumPavilion 35°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$13,731 HKD|Low: HK$1,146 HKD|High: HK$14,280 HKD|Avg: HK$5,875 HKD|-3.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6HK$1,428 HKD
Retailer 3HK$1,656 HKD
Retailer 9HK$1,663 HKD
Retailer 5HK$3,131 HKD
Retailer 4HK$6,018 HKD
Retailer 8HK$6,247 HKD
Retailer 7HK$6,285 HKD
Retailer 2HK$9,187 HKD
Do Amore DiamondsHK$13,731 HKD

21 data points across 9 retailers

9 retailersHK$1,428 HKD to HK$13,731 HKD

A
Cheapest Retailer
-
HK$1,428 HKD
$182 USD
A
Retailer 2
-
HK$1,656 HKD
$211 USD
View
A
Retailer 3
-
HK$1,663 HKD
$212 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$3,131 HKD
$399 USD
View
Retailer 5
-
HK$6,018 HKD
$767 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
HK$6,247 HKD
$796 USD
View
B+
Retailer 7
-
HK$6,285 HKD
$801 USD
View
B
Retailer 8
-
HK$9,187 HKD
£922 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9AEFA5AC9 · Oct 29
HK$13,731 HKD
$1,750 USD
View
8 more retailers have this diamond
Prices start from HK$1,428 HKDSave up to HK$12,303 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
1.71ct Radiant
HK$1,428 HKD