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1.71ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG442067089

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442067089

Diamond specifications and retailer prices

From HK$7,453 HKD
$950 USD
As of October 30, 2026
Save HK$33,100 HKD (82%) vs most expensive(unlock to see where)
11 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 LG442067089 or 442067089. Listed at 11 retailers as of October 29, 2026, with prices from HK$7,453 to HK$40,554, a HK$33,100 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442067089
Dimensions7.81 × 7.79 × 4.57 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.81 mm7.79 mm1.71 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442067089
Side View
Table 59.5%Crown 31.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.6%

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: Oct 30
Current: HK$40,554 HKD|Low: HK$7,453 HKD|High: HK$40,823 HKD|Avg: HK$21,277 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
October 30, 2026
Retailer 2HK$7,453 HKD
Retailer 5HK$12,177 HKD
Retailer 8HK$13,628 HKD
Retailer 6HK$14,122 HKD
Retailer 9HK$15,456 HKD
Retailer 3HK$15,834 HKD
Retailer 10HK$19,096 HKD
Retailer 7HK$22,227 HKD
Retailer 4HK$24,973 HKD
Retailer 11HK$40,424 HKD
MOH LondonHK$40,554 HKD

14 data points across 11 retailers

11 retailersHK$7,453 HKD to HK$40,554 HKD

A
Cheapest Retailer
-
HK$7,453 HKD
$950 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
Retailer 5
-
HK$14,122 HKD
$1,800 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
HK$14,122 HKD
$1,800 USD
View
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$26,471 HKD
$3,374 USD
View
Most Expensive
B
MOH London
LG442067089 · Oct 29
HK$40,554 HKD
£4,070 GBP
View
10 more retailers have this diamond
Prices start from HK$7,453 HKDSave up to HK$33,100 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$7,453 HKD