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Cushion|Lab Grown|IGI

1.41ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG515211276

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG515211276

Diamond specifications and retailer prices

From HK$1,561 HKD
$199 USD
As of October 30, 2026
Save HK$6,912 HKD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$8,473 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.41ct lab-grown cushion diamond

This 1.41ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515211276 or 515211276. Listed at 13 retailers as of October 29, 2026, with prices from HK$1,561 to HK$8,473, a HK$6,912 spread on the same certified stone. Brilliant Earth lists it at HK$8,473. 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

1.41
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515211276
Dimensions6.58 × 6.45 × 4.22 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.58 mm6.45 mm1.41 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515211276
Side View
Table 65.0%Crown 33.7°Girdle: MED-VTKPavilion 37.9°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$8,473 HKD|Low: HK$1,561 HKD|High: HK$8,787 HKD|Avg: HK$4,335 HKD|-3.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 13HK$1,561 HKD
Retailer 12HK$1,734 HKD
Retailer 11HK$1,908 HKD
Retailer 6HK$2,999 HKD
Retailer 10HK$3,068 HKD
Retailer 2HK$3,084 HKD
Retailer 9HK$3,226 HKD
Retailer 3HK$3,735 HKD
Retailer 4HK$4,488 HKD
Retailer 5HK$5,655 HKD
Retailer 8HK$6,904 HKD
Retailer 7HK$8,101 HKD
Brilliant EarthHK$8,473 HKD

43 data points across 13 retailers

13 retailersHK$1,561 HKD to HK$8,473 HKD

A
Cheapest Retailer
-
HK$1,561 HKD
$199 USD
Final sale: no returns
A
Retailer 2
-
HK$1,734 HKD
$221 USD
View
A
Retailer 3
-
HK$1,908 HKD
View
A
Retailer 4
-
HK$2,999 HKD
€364 EUR
View
B+
Retailer 5
-
HK$3,068 HKD
$391 USD
View
A
Retailer 6
-
HK$3,084 HKD
£309 GBP
View
Retailer 7
-
HK$3,226 HKD
£324 GBP
View
Price last confirmed 17 days ago
A
Retailer 8
-
HK$3,735 HKD
$476 USD
View
B+
Retailer 9
-
HK$4,488 HKD
$572 USD
View
B
Retailer 10
-
HK$5,655 HKD
SGD 974 SGD
View
Retailer 11
-
HK$6,904 HKD
$880 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
HK$8,101 HKD
£813 GBP
View
Most Expensive
B
Brilliant Earth
19056475A · Oct 29
HK$8,473 HKD
$1,080 USD
View
12 more retailers have this diamond
Prices start from HK$1,561 HKDSave up to HK$6,912 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
1.41ct Cushion
HK$1,561 HKD