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Cushion|Lab Grown|IGI

1.67ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG538297406

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG538297406

Diamond specifications and retailer prices

From HK$1,789 HKD
$228 USD
As of November 1, 2026
Save HK$9,980 HKD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$11,769 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 standard cut grade and certified by IGI LG538297406 or 538297406. Listed at 14 retailers as of October 31, 2026, with prices from HK$1,789 to HK$11,769, a HK$9,980 spread on the same certified stone. Brilliant Earth lists it at HK$11,769. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.67
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538297406
Dimensions6.62 × 6.59 × 4.27 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
6.62 mm6.59 mm1.67 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538297406
Side View
Table 63.0%Crown 37.8°Girdle: THK-VTKPavilion 31.9°Culet: NoneDepth 64.8%

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$11,769 HKD|Low: HK$1,789 HKD|High: HK$12,553 HKD|Avg: HK$5,173 HKD|-6.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11HK$1,789 HKD
Retailer 9HK$1,993 HKD
Retailer 7HK$2,683 HKD
Retailer 5HK$3,246 HKD
Retailer 4HK$3,659 HKD
Retailer 3HK$4,036 HKD
Retailer 10HK$4,637 HKD
Retailer 6HK$4,825 HKD
Retailer 8HK$8,199 HKD
Retailer 2HK$9,306 HKD
Brilliant EarthHK$11,769 HKD

43 data points across 11 retailers

14 retailersHK$1,789 HKD to HK$11,769 HKD

A
Cheapest Retailer
-
HK$1,789 HKD
$228 USD
Final sale: no returns
Retailer 2
-
HK$1,993 HKD
$254 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
HK$2,683 HKD
$342 USD
View
A
Retailer 4
-
HK$3,246 HKD
€394 EUR
View
B+
Retailer 5
-
HK$3,659 HKD
£367 GBP
View
B+
Retailer 6
-
HK$4,036 HKD
$514 USD
View
B+
Retailer 7
-
HK$4,590 HKD
$585 USD
View
B+
Retailer 8
-
HK$4,637 HKD
$591 USD
View
B+
Retailer 9
-
HK$4,825 HKD
$615 USD
View
B
Retailer 10
-
HK$6,814 HKD
$869 USD
View
Retailer 11
-
HK$8,199 HKD
$1,045 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
HK$9,306 HKD
£934 GBP
View
B
Retailer 13
-
HK$9,478 HKD
$1,208 USD
View
Most Expensive
B
Brilliant Earth
10789091A · Oct 31
HK$11,769 HKD
$1,500 USD
View
13 more retailers have this diamond
Prices start from HK$1,789 HKDSave up to HK$9,980 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$1,789 HKD