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Cushion|Lab Grown|IGI

1.61ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG544280403

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG544280403

Diamond specifications and retailer prices

From HK$1,734 HKD
$221 USD
As of October 30, 2026
Save HK$8,622 HKD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$10,356 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.61ct lab-grown cushion diamond

This 1.61ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544280403 or 544280403. Listed at 13 retailers as of October 30, 2026, with prices from HK$1,734 to HK$10,356, a HK$8,622 spread on the same certified stone. Brilliant Earth lists it at HK$10,356. 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

1.61
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle28.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544280403
Dimensions7.72 × 6.20 × 3.88 mm
L/W Ratio1.25
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
7.72 mm6.20 mm1.61 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544280403
Side View
Table 64.0%Crown 33.6°Girdle: MED-THKPavilion 28.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
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$10,356 HKD|Low: HK$1,734 HKD|High: HK$16,398 HKD|Avg: HK$5,321 HKD|-36.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9HK$1,734 HKD
Retailer 5HK$2,605 HKD
Retailer 4HK$3,180 HKD
Retailer 2HK$3,529 HKD
Retailer 10HK$3,891 HKD
Retailer 8HK$4,566 HKD
Retailer 3HK$4,653 HKD
Retailer 6HK$8,199 HKD
Retailer 7HK$9,067 HKD
Brilliant EarthHK$10,356 HKD

43 data points across 10 retailers

13 retailersHK$1,734 HKD to HK$10,356 HKD

A
Cheapest Retailer
-
HK$1,734 HKD
$221 USD
Final sale: no returns
B+
Retailer 2
-
HK$2,605 HKD
$332 USD
View
A
Retailer 3
-
HK$3,180 HKD
€386 EUR
View
A
Retailer 4
-
HK$3,529 HKD
£354 GBP
View
A
Retailer 5
-
HK$3,891 HKD
$496 USD
View
A
Retailer 6
-
HK$4,292 HKD
$547 USD
View
A
Retailer 7
-
HK$4,566 HKD
$582 USD
View
A
Retailer 8
-
HK$4,653 HKD
$593 USD
View
B
Retailer 9
-
HK$6,618 HKD
$843 USD
View
Retailer 10
-
HK$8,199 HKD
$1,045 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
HK$9,067 HKD
£910 GBP
View
B
Retailer 12
-
HK$9,319 HKD
$1,188 USD
View
Most Expensive
B
Brilliant Earth
10789422A · Oct 30
HK$10,356 HKD
$1,320 USD
View
12 more retailers have this diamond
Prices start from HK$1,734 HKDSave up to HK$8,622 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
1.61ct Cushion
HK$1,734 HKD