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1.71ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG799635486

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799635486

Diamond specifications and retailer prices

From HK$1,758 HKD
$224 USD
As of November 1, 2026
Save HK$6,981 HKD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$8,739 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round 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 LG799635486 or 799635486. Listed at 16 retailers as of November 1, 2026, with prices from HK$1,758 to HK$8,739, a HK$6,981 spread on the same certified stone. MOH London lists it at HK$8,739. 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 angle33.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799635486
Dimensions7.69 × 7.73 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.69 mm7.73 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799635486
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.6%

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: Nov 1
Current: HK$8,739 HKD|Low: HK$1,758 HKD|High: HK$8,849 HKD|Avg: HK$5,013 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6HK$1,758 HKD
Retailer 8HK$2,181 HKD
Retailer 3HK$3,666 HKD
Retailer 9HK$3,711 HKD
Retailer 4HK$4,056 HKD
Retailer 10HK$4,229 HKD
Retailer 2HK$5,790 HKD
Retailer 5HK$6,512 HKD
Retailer 7HK$8,160 HKD
MOH LondonHK$8,739 HKD

41 data points across 10 retailers

16 retailersHK$1,758 HKD to HK$8,739 HKD

A
Cheapest Retailer
-
HK$1,758 HKD
$224 USD
A
Retailer 2
-
HK$2,040 HKD
$260 USD
View
Retailer 3
-
HK$2,181 HKD
$278 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$2,181 HKD
$278 USD
View
A
Retailer 5
-
HK$3,666 HKD
€445 EUR
View
B+
Retailer 6
-
HK$3,711 HKD
$473 USD
View
A
Retailer 7
-
HK$4,056 HKD
£407 GBP
View
A
Retailer 8
-
HK$4,174 HKD
$532 USD
View
A
Retailer 9
-
HK$4,229 HKD
$539 USD
View
B+
Retailer 10
-
HK$5,790 HKD
$738 USD
View
Retailer 11
-
HK$6,395 HKD
$815 USD
View
Price last confirmed 47 days ago
B+
Retailer 12
-
HK$6,512 HKD
$830 USD
View
B+
Retailer 13
-
HK$7,014 HKD
$894 USD
View
B
Retailer 14
-
HK$7,425 HKD
$946 USD
View
B
Retailer 15
-
HK$8,160 HKD
$1,040 USD
View
Most Expensive
B
MOH London
LG799635486 · Nov 1
HK$8,739 HKD
£877 GBP
View
15 more retailers have this diamond
Prices start from HK$1,758 HKDSave up to HK$6,981 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 Round
HK$1,758 HKD