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Cushion|Lab Grown|IGI

1.77ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG671405868

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG671405868

Diamond specifications and retailer prices

From $673 SGD
$525 USD
As of October 29, 2026
Save $5,287 SGD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,960 SGD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG671405868 or 671405868. Listed at 20 retailers as of October 29, 2026, with prices from $673 to $5,960, a $5,287 spread on the same certified stone. Brilliant Earth lists it at $5,960. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671405868
Dimensions8.08 × 6.39 × 4.49 mm
L/W Ratio1.26
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
8.08 mm6.39 mm1.77 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671405868
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 70.3%

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 29
Current: $5,960 SGD|Low: $673 SGD|High: $5,960 SGD|Avg: $2,055 SGD
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
October 30, 2026
Retailer 14$673 SGD
Retailer 8$745 SGD
Retailer 3$1,038 SGD
Retailer 7$1,038 SGD
Retailer 4$1,075 SGD
Retailer 13$1,128 SGD
Retailer 9$1,236 SGD
Retailer 16$1,281 SGD
Retailer 10$1,735 SGD
Retailer 11$1,807 SGD
Retailer 6$2,311 SGD
Retailer 12$2,434 SGD
Retailer 2$2,629 SGD
Retailer 15$2,753 SGD
Retailer 5$3,743 SGD
Brilliant Earth$5,960 SGD

34 data points across 16 retailers

20 retailers$673 SGD to $5,960 SGD

A
Cheapest Retailer
-
$673 SGD
$525 USD
Final sale: no returns
Retailer 2
-
$745 SGD
$581 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$853 SGD
HK$5,200 HKD
View
Price last confirmed 56 days ago
A
Retailer 4
-
$1,038 SGD
$810 USD
View
A
Retailer 5
-
$1,038 SGD
$810 USD
View
A
Retailer 6
-
$1,075 SGD
$839 USD
View
A
Retailer 7
-
$1,128 SGD
€838 EUR
View
A
Retailer 8
-
$1,236 SGD
£759 GBP
View
A
Retailer 9
-
$1,281 SGD
ZAR 16,141 ZAR
View
A
Retailer 10
-
$1,735 SGD
A$2,083 AUD
View
A
Retailer 11
-
$1,807 SGD
$1,410 USD
View
B+
Retailer 12
-
$2,311 SGD
$1,803 USD
View
Retailer 13
-
$2,363 SGD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$2,434 SGD
$1,899 USD
View
B+
Retailer 15
-
$2,530 SGD
$1,974 USD
View
B+
Retailer 16
-
$2,629 SGD
$2,052 USD
View
B+
Retailer 17
-
$2,753 SGD
£1,691 GBP
View
B+
Retailer 18
-
$3,743 SGD
$2,920 USD
View
Retailer 19
-
$3,807 SGD
$2,970 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
12605322A · Oct 29
$5,960 SGD
$4,650 USD
View
19 more retailers have this diamond
Prices start from $673 SGDSave up to $5,287 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
$673 SGD