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Cushion|Lab Grown|IGI

1.86ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG828664278

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG828664278

Diamond specifications and retailer prices

From $1,716 SGD
$1,342 USD
As of October 31, 2026
Save $10,289 SGD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $12,004 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.86ct lab-grown cushion diamond

This 1.86ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828664278 or 828664278. Listed at 10 retailers as of October 31, 2026, with prices from $1,716 to $12,004, a $10,289 spread on the same certified stone. Do Amore Diamonds lists it at $12,004. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828664278
Dimensions7.78 × 7.41 × 4.49 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeLarge
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
7.78 mm7.41 mm1.86 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828664278
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 39.9°Culet: LargeDepth 60.6%

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 31
Current: $12,004 SGD|Low: $1,716 SGD|High: $12,004 SGD|Avg: $4,667 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$1,716 SGD
Retailer 7$1,755 SGD
Retailer 10$2,582 SGD
Retailer 2$2,731 SGD
Retailer 6$2,768 SGD
Retailer 5$4,841 SGD
Retailer 9$4,947 SGD
Retailer 4$6,259 SGD
Retailer 3$6,867 SGD
Do Amore Diamonds$12,004 SGD

36 data points across 10 retailers

10 retailers$1,716 SGD to $12,004 SGD

A
Cheapest Retailer
-
$1,716 SGD
$1,342 USD
Retailer 2
-
$1,755 SGD
$1,373 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$2,582 SGD
$2,020 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$2,731 SGD
£1,682 GBP
View
B+
Retailer 5
-
$2,768 SGD
$2,165 USD
View
B+
Retailer 6
-
$4,841 SGD
$3,787 USD
View
B
Retailer 7
-
$4,947 SGD
$3,869 USD
View
B
Retailer 8
-
$6,259 SGD
£3,855 GBP
View
B
Retailer 9
-
$6,867 SGD
$5,371 USD
View
Most Expensive
B
Do Amore Diamonds
20-E98518 · Oct 31
$12,004 SGD
$9,390 USD
View
9 more retailers have this diamond
Prices start from $1,716 SGDSave up to $10,289 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
1.86ct Cushion
$1,716 SGD