CaratHunter
Plans
Cushion|Lab Grown|IGI

1.77ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662375

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662375

Diamond specifications and retailer prices

From $956 SGD
£589 GBP
As of November 1, 2026
Save $3,761 SGD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,717 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 LG846662375 or 846662375. Listed at 10 retailers as of October 31, 2026, with prices from $956 to $4,717, a $3,761 spread on the same certified stone. Brilliant Earth lists it at $4,717. 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 angle34.1°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662375
Dimensions9.20 × 6.01 × 4.03 mm
L/W Ratio1.53
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
9.20 mm6.01 mm1.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662375
Side View
Table 58.0%Crown 34.1°Girdle: STK-VTKPavilion 31.9°Culet: NoneDepth 67.1%

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: $4,717 SGD|Low: $956 SGD|High: $9,744 SGD|Avg: $3,539 SGD|-35.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$956 SGD
Retailer 4$1,391 SGD
Retailer 10$1,509 SGD
Retailer 6$1,889 SGD
Retailer 8$2,525 SGD
Retailer 7$3,075 SGD
Retailer 9$3,381 SGD
Retailer 2$3,842 SGD
Retailer 3$3,926 SGD
Brilliant Earth$4,717 SGD

12 data points across 10 retailers

10 retailers$956 SGD to $4,717 SGD

A
Cheapest Retailer
-
$956 SGD
£589 GBP
A
Retailer 2
-
$1,391 SGD
$1,088 USD
View
A
Retailer 3
-
$1,509 SGD
$1,180 USD
View
A
Retailer 4
-
$1,889 SGD
$1,478 USD
View
B+
Retailer 5
-
$2,525 SGD
€1,881 EUR
View
B+
Retailer 6
-
$3,075 SGD
$2,405 USD
View
B+
Retailer 7
-
$3,381 SGD
$2,645 USD
View
B
Retailer 8
-
$3,842 SGD
$3,005 USD
View
B+
Retailer 9
-
$3,926 SGD
£2,418 GBP
View
Most Expensive
B
Brilliant Earth
22154706A · Oct 31
$4,717 SGD
$3,690 USD
View
9 more retailers have this diamond
Prices start from $956 SGDSave up to $3,761 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
$956 SGD