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Cushion|Lab Grown|IGI

1.71ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG551273812

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG551273812

Diamond specifications and retailer prices

From HK$6,529 HKD
$832 USD
As of October 27, 2026
Save HK$8,065 HKD (55%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$14,594 HKD at Do Amore Diamonds · As of October 27, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551273812 or 551273812. Listed at 5 retailers as of October 27, 2026, with prices from HK$6,529 to HK$14,594, a HK$8,065 spread on the same certified stone. Do Amore Diamonds lists it at HK$14,594. 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 angle36.1°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551273812
Dimensions7.82 × 6.52 × 4.46 mm
L/W Ratio1.20
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
7.82 mm6.52 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551273812
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: HK$14,594 HKD|Low: HK$1,216 HKD|High: HK$15,849 HKD|Avg: HK$7,428 HKD|-7.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 18, 2026
Retailer 6HK$1,805 HKD
Retailer 3HK$3,288 HKD
Retailer 7HK$6,136 HKD
Retailer 4HK$6,529 HKD
Retailer 2HK$8,380 HKD
Retailer 5HK$9,494 HKD
Do Amore DiamondsHK$14,594 HKD

15 data points across 7 retailers

5 retailersHK$6,529 HKD to HK$14,594 HKD

Retailer 1
-
HK$3,288 HKD
$419 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
HK$6,529 HKD
$832 USD
View
Retailer 3
-
HK$8,380 HKD
£841 GBP
View
Price last confirmed 12 days ago
Retailer 4
-
HK$9,494 HKD
$1,210 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-7603D228F · Oct 27
HK$14,594 HKD
$1,860 USD
View
4 more retailers have this diamond
Prices start from HK$6,529 HKDSave up to HK$8,065 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.

B+
1.71ct Cushion
HK$6,529 HKD