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Cushion|Lab Grown|IGI

1.67ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG533220807

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG533220807

Diamond specifications and retailer prices

From HK$2,385 HKD
$304 USD
As of November 1, 2026
Save HK$10,090 HKD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$12,475 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.67ct lab-grown cushion diamond

This 1.67ct 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 LG533220807 or 533220807. Listed at 14 retailers as of October 31, 2026, with prices from HK$2,385 to HK$12,475, a HK$10,090 spread on the same certified stone. Brilliant Earth lists it at HK$12,475. 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

1.67
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG533220807
Dimensions6.98 × 6.95 × 4.56 mm
L/W Ratio1.00
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
6.98 mm6.95 mm1.67 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG533220807
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 65.6%

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: Nov 1
Current: HK$12,475 HKD|Low: HK$2,354 HKD|High: HK$12,632 HKD|Avg: HK$5,568 HKD|-1.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3HK$2,385 HKD
Retailer 12HK$2,636 HKD
Retailer 2HK$2,935 HKD
Retailer 11HK$3,531 HKD
Retailer 8HK$3,884 HKD
Retailer 5HK$4,633 HKD
Retailer 7HK$4,687 HKD
Retailer 4HK$4,739 HKD
Retailer 10HK$6,685 HKD
Retailer 9HK$8,434 HKD
Retailer 6HK$10,562 HKD
Brilliant EarthHK$12,475 HKD

42 data points across 12 retailers

14 retailersHK$2,385 HKD to HK$12,475 HKD

A
Cheapest Retailer
-
HK$2,385 HKD
$304 USD
Final sale: no returns
Retailer 2
-
HK$2,636 HKD
$336 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
HK$2,935 HKD
£295 GBP
View
B+
Retailer 4
-
HK$3,531 HKD
$450 USD
View
A
Retailer 5
-
HK$3,884 HKD
$495 USD
View
A
Retailer 6
-
HK$4,633 HKD
£465 GBP
View
A
Retailer 7
-
HK$4,687 HKD
€569 EUR
View
B+
Retailer 8
-
HK$4,739 HKD
$604 USD
View
B+
Retailer 9
-
HK$4,770 HKD
$608 USD
View
B+
Retailer 10
-
HK$6,685 HKD
$852 USD
View
Retailer 11
-
HK$8,434 HKD
$1,075 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
HK$8,875 HKD
$1,131 USD
View
B
Retailer 13
-
HK$10,562 HKD
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
11226141A · Oct 31
HK$12,475 HKD
$1,590 USD
View
13 more retailers have this diamond
Prices start from HK$2,385 HKDSave up to HK$10,090 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
1.67ct Cushion
HK$2,385 HKD