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Cushion|Lab Grown|IGI

1.66ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG729569332

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG729569332

Diamond specifications and retailer prices

From $900 SGD
$704 USD
As of November 1, 2026
Save $3,306 SGD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,206 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.66ct lab-grown cushion diamond

This 1.66ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729569332 or 729569332. Listed at 20 retailers as of October 31, 2026, with prices from $900 to $4,206, a $3,306 spread on the same certified stone. Brilliant Earth lists it at $4,206. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729569332
Dimensions7.93 × 6.21 × 4.31 mm
L/W Ratio1.28
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
7.93 mm6.21 mm1.66 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729569332
Side View
Table 58.0%Crown 35.8°Girdle: MED-VTKPavilion 40°Culet: NoneDepth 69.4%

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: Nov 1
Current: $4,206 SGD|Low: $900 SGD|High: $4,295 SGD|Avg: $2,219 SGD|-2.1%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 10$900 SGD
Retailer 4$935 SGD
Retailer 15$1,151 SGD
Retailer 7$1,255 SGD
Retailer 9$1,517 SGD
Retailer 2$1,552 SGD
Retailer 13$1,716 SGD
Retailer 11$2,125 SGD
Retailer 12$2,326 SGD
Retailer 14$2,423 SGD
Retailer 6$2,903 SGD
Retailer 3$3,011 SGD
Retailer 5$3,152 SGD
Retailer 8$3,936 SGD
Brilliant Earth$4,206 SGD

44 data points across 15 retailers

20 retailers$900 SGD to $4,206 SGD

A
Cheapest Retailer
-
$900 SGD
$704 USD
Final sale: no returns
Retailer 2
-
$935 SGD
$731 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$1,096 SGD
HK$6,700 HKD
View
A
Retailer 4
-
$1,151 SGD
$900 USD
View
A
Retailer 5
-
$1,255 SGD
$982 USD
View
A
Retailer 6
-
$1,340 SGD
$1,048 USD
View
A
Retailer 7
-
$1,517 SGD
€1,130 EUR
View
A
Retailer 8
-
$1,552 SGD
£956 GBP
View
A
Retailer 9
-
$1,684 SGD
$1,317 USD
View
A
Retailer 10
-
$1,716 SGD
ZAR 21,689 ZAR
View
B+
Retailer 11
-
$2,125 SGD
$1,662 USD
View
B+
Retailer 12
-
$2,326 SGD
A$2,799 AUD
View
Retailer 13
-
$2,423 SGD
$1,895 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$2,903 SGD
£1,788 GBP
View
B+
Retailer 15
-
$3,011 SGD
$2,355 USD
View
B+
Retailer 16
-
$3,152 SGD
View
B
Retailer 17
-
$3,224 SGD
$2,522 USD
View
B
Retailer 18
-
$3,280 SGD
$2,566 USD
View
B
Retailer 19
-
$3,936 SGD
£2,424 GBP
View
Most Expensive
B
Brilliant Earth
15964172A · Oct 31
$4,206 SGD
$3,290 USD
View
19 more retailers have this diamond
Prices start from $900 SGDSave up to $3,306 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
1.66ct Cushion
$900 SGD