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Princess|Lab Grown|IGI

1.71ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG657423845

Shape and cutting style on the report: Princess cut

Certificate IGI LG657423845

Diamond specifications and retailer prices

From HK$1,506 HKD
$192 USD
As of November 2, 2026
Save HK$8,458 HKD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$9,965 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess 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 LG657423845 or 657423845. Listed at 15 retailers as of November 2, 2026, with prices from HK$1,506 to HK$9,965, a HK$8,458 spread on the same certified stone. Brilliant Earth lists it at HK$9,965. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657423845
Dimensions6.71 × 6.46 × 4.27 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm6.46 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657423845
Side View
Table 76.0%Crown 44.5°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 66.1%

Caratlytics Score

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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$9,965 HKD|Low: HK$1,506 HKD|High: HK$15,849 HKD|Avg: HK$5,426 HKD|-37.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9HK$1,506 HKD
Retailer 2HK$2,397 HKD
Retailer 10HK$3,272 HKD
Retailer 4HK$3,383 HKD
Retailer 6HK$3,501 HKD
Retailer 3HK$3,954 HKD
Retailer 11HK$4,449 HKD
Retailer 8HK$6,041 HKD
Retailer 7HK$7,925 HKD
Retailer 5HK$8,759 HKD
Brilliant EarthHK$9,965 HKD

44 data points across 11 retailers

15 retailersHK$1,506 HKD to HK$9,965 HKD

A
Cheapest Retailer
-
HK$1,506 HKD
$192 USD
A
Retailer 2
-
HK$1,750 HKD
$223 USD
View
A
Retailer 3
-
HK$1,875 HKD
$239 USD
View
Retailer 4
-
HK$1,875 HKD
$239 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$2,397 HKD
£241 GBP
View
B+
Retailer 6
-
HK$3,272 HKD
$417 USD
View
A
Retailer 7
-
HK$3,383 HKD
£340 GBP
View
A
Retailer 8
-
HK$3,501 HKD
€425 EUR
View
A
Retailer 9
-
HK$3,954 HKD
$504 USD
View
B+
Retailer 10
-
HK$4,449 HKD
$567 USD
View
B+
Retailer 11
-
HK$6,018 HKD
$767 USD
View
B
Retailer 12
-
HK$6,041 HKD
$770 USD
View
B
Retailer 13
-
HK$7,925 HKD
$1,010 USD
View
B
Retailer 14
-
HK$8,759 HKD
£879 GBP
View
Most Expensive
B
Brilliant Earth
13299720A · Nov 2
HK$9,965 HKD
$1,270 USD
View
14 more retailers have this diamond
Prices start from HK$1,506 HKDSave up to HK$8,458 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 Princess
HK$1,506 HKD