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Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG447099869

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099869

Diamond specifications and retailer prices

From HK$7,689 HKD
$980 USD
As of October 30, 2026
Save HK$32,865 HKD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$40,554 HKD at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099869 or 447099869. Listed at 12 retailers as of October 29, 2026, with prices from HK$7,689 to HK$40,554, a HK$32,865 spread on the same certified stone. MOH London lists it at HK$40,554. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099869
Dimensions7.66 × 7.61 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.66 mm7.61 mm1.71 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099869
Side View
Table 56.0%Crown 35.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.0%

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 30
Current: HK$40,554 HKD|Low: HK$7,689 HKD|High: HK$40,823 HKD|Avg: HK$18,645 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 2HK$7,689 HKD
Retailer 9HK$12,177 HKD
Retailer 12HK$13,244 HKD
Retailer 14HK$13,628 HKD
Retailer 3HK$14,122 HKD
Retailer 10HK$14,122 HKD
Retailer 4HK$15,456 HKD
Retailer 6HK$15,834 HKD
Retailer 5HK$19,096 HKD
Retailer 11HK$22,227 HKD
Retailer 8HK$24,973 HKD
Retailer 7HK$25,620 HKD
Retailer 13HK$26,471 HKD
MOH LondonHK$40,554 HKD

21 data points across 14 retailers

12 retailersHK$7,689 HKD to HK$40,554 HKD

A
Cheapest Retailer
-
HK$7,689 HKD
$980 USD
B+
Retailer 2
-
HK$12,177 HKD
$1,552 USD
View
B+
Retailer 3
-
HK$13,244 HKD
$1,688 USD
View
B+
Retailer 4
-
HK$13,628 HKD
$1,737 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$14,122 HKD
$1,800 USD
View
Retailer 6
-
HK$14,122 HKD
$1,800 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
HK$15,456 HKD
$1,970 USD
View
B
Retailer 8
-
HK$22,227 HKD
$2,833 USD
View
B
Retailer 9
-
HK$24,973 HKD
$3,183 USD
View
B
Retailer 10
-
HK$25,620 HKD
£2,571 GBP
View
B
Retailer 11
-
HK$26,471 HKD
$3,374 USD
View
Most Expensive
B
MOH London
LG447099869 · Oct 29
HK$40,554 HKD
£4,070 GBP
View
11 more retailers have this diamond
Prices start from HK$7,689 HKDSave up to HK$32,865 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$7,689 HKD