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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 $291 SGD
$228 USD
As of October 30, 2026
Save $1,626 SGD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,918 SGD 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 30, 2026, with prices from $291 to $1,918, a $1,626 spread on the same certified stone. Brilliant Earth lists it at $1,918. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,918 SGD|Low: $291 SGD|High: $2,045 SGD|Avg: $844 SGD|-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 11$291 SGD
Retailer 9$325 SGD
Retailer 7$437 SGD
Retailer 5$529 SGD
Retailer 4$596 SGD
Retailer 3$658 SGD
Retailer 10$756 SGD
Retailer 6$786 SGD
Retailer 8$1,336 SGD
Retailer 2$1,516 SGD
Brilliant Earth$1,918 SGD

44 data points across 11 retailers

14 retailers$291 SGD to $1,918 SGD

A
Cheapest Retailer
-
$291 SGD
$228 USD
Final sale: no returns
Retailer 2
-
$325 SGD
$254 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$437 SGD
$342 USD
View
A
Retailer 4
-
$529 SGD
€394 EUR
View
B+
Retailer 5
-
$596 SGD
£367 GBP
View
B+
Retailer 6
-
$658 SGD
$514 USD
View
B+
Retailer 7
-
$748 SGD
$585 USD
View
B+
Retailer 8
-
$756 SGD
$591 USD
View
B+
Retailer 9
-
$786 SGD
$615 USD
View
B
Retailer 10
-
$1,110 SGD
$869 USD
View
Retailer 11
-
$1,336 SGD
$1,045 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$1,516 SGD
£934 GBP
View
B
Retailer 13
-
$1,544 SGD
$1,208 USD
View
Most Expensive
B
Brilliant Earth
10789091A · Oct 31
$1,918 SGD
$1,500 USD
View
13 more retailers have this diamond
Prices start from $291 SGDSave up to $1,626 SGD

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
$291 SGD