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Cushion|Lab Grown|IGI

1.71ct H SI1 Cushion Lab Grown Diamond

EX • H/SI1 • IGI LG515227082

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG515227082

Diamond specifications and retailer prices

From HK$2,997 HKD
$382 USD
As of November 1, 2026
Save HK$15,440 HKD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$18,437 HKD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown cushion diamond

This 1.71ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515227082 or 515227082. Listed at 10 retailers as of November 1, 2026, with prices from HK$2,997 to HK$18,437, a HK$15,440 spread on the same certified stone. Do Amore Diamonds lists it at HK$18,437. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515227082
Dimensions6.88 × 6.83 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.88 mm6.83 mm1.71 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515227082
Side View
Table 62.0%Crown 35°Girdle: STK-VTKPavilion 40.6°Culet: NoneDepth 68.5%

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$18,437 HKD|Low: HK$2,997 HKD|High: HK$18,437 HKD|Avg: HK$7,933 HKD|+17.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5HK$2,997 HKD
Retailer 7HK$3,570 HKD
Retailer 2HK$3,748 HKD
Retailer 4HK$3,805 HKD
Retailer 9HK$5,195 HKD
Retailer 8HK$6,867 HKD
Retailer 10HK$9,125 HKD
Retailer 3HK$10,278 HKD
Retailer 6HK$11,399 HKD
Do Amore DiamondsHK$18,437 HKD

27 data points across 10 retailers

10 retailersHK$2,997 HKD to HK$18,437 HKD

B+
Cheapest Retailer
-
HK$2,997 HKD
$382 USD
A
Retailer 2
-
HK$3,570 HKD
$455 USD
View
B+
Retailer 3
-
HK$3,748 HKD
£376 GBP
View
A
Retailer 4
-
HK$3,805 HKD
$485 USD
View
A
Retailer 5
-
HK$5,195 HKD
$662 USD
View
B+
Retailer 6
-
HK$6,867 HKD
$875 USD
View
B+
Retailer 7
-
HK$9,125 HKD
$1,163 USD
View
B
Retailer 8
-
HK$10,278 HKD
$1,310 USD
View
B
Retailer 9
-
HK$11,399 HKD
£1,144 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0CB569BFC · Nov 2
HK$18,437 HKD
$2,350 USD
View
9 more retailers have this diamond
Prices start from HK$2,997 HKDSave up to HK$15,440 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 Cushion
HK$2,997 HKD