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Cushion|Lab Grown|IGI

1.77ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG840633254

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840633254

Diamond specifications and retailer prices

From $885 SGD
$692 USD
As of October 30, 2026
Save $3,820 SGD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,705 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.77ct lab-grown cushion diamond

This 1.77ct 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 LG840633254 or 840633254. Listed at 19 retailers as of October 30, 2026, with prices from $885 to $4,705, a $3,820 spread on the same certified stone. Brilliant Earth lists it at $4,705. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840633254
Dimensions8.96 × 5.98 × 4.13 mm
L/W Ratio1.50
Girdle conditionFaceted
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
8.96 mm5.98 mm1.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840633254
Side View
Table 60.0%Crown 35°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 69.1%

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: Oct 30
Current: $4,705 SGD|Low: $885 SGD|High: $6,430 SGD|Avg: $2,485 SGD|-26.8%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 4$885 SGD
Retailer 11$974 SGD
Retailer 12$1,026 SGD
Retailer 17$1,119 SGD
Retailer 6$1,250 SGD
Retailer 18$1,488 SGD
Retailer 13$1,506 SGD
Retailer 14$1,546 SGD
Retailer 16$1,667 SGD
Retailer 19$1,852 SGD
Retailer 15$2,100 SGD
Retailer 5$2,825 SGD
Retailer 7$3,075 SGD
Retailer 3$3,135 SGD
Retailer 8$3,212 SGD
Retailer 9$3,848 SGD
Retailer 2$4,212 SGD
Retailer 10$4,363 SGD
Brilliant Earth$4,705 SGD

25 data points across 19 retailers

19 retailers$885 SGD to $4,705 SGD

A
Cheapest Retailer
-
$885 SGD
$692 USD
Final sale: no returns
Retailer 2
-
$974 SGD
$762 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$1,026 SGD
£632 GBP
View
A
Retailer 4
-
$1,119 SGD
$875 USD
View
A
Retailer 5
-
$1,250 SGD
$978 USD
View
A
Retailer 6
-
$1,488 SGD
$1,164 USD
View
A
Retailer 7
-
$1,506 SGD
£928 GBP
View
A
Retailer 8
-
$1,546 SGD
€1,152 EUR
View
A
Retailer 9
-
$1,667 SGD
ZAR 21,067 ZAR
View
A
Retailer 10
-
$1,852 SGD
$1,449 USD
View
B+
Retailer 11
-
$2,100 SGD
$1,643 USD
View
B+
Retailer 12
-
$2,825 SGD
£1,740 GBP
View
B+
Retailer 13
-
$3,075 SGD
$2,405 USD
View
B+
Retailer 14
-
$3,135 SGD
$2,452 USD
View
B+
Retailer 15
-
$3,212 SGD
View
Retailer 16
-
$3,848 SGD
$3,010 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$4,212 SGD
£2,594 GBP
View
B+
Retailer 18
-
$4,363 SGD
$3,413 USD
View
Most Expensive
B
Brilliant Earth
21729240A · Oct 31
$4,705 SGD
$3,680 USD
View
18 more retailers have this diamond
Prices start from $885 SGDSave up to $3,820 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
1.77ct Cushion
$885 SGD