Cushion|Lab Grown|IGI

1.77ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG801694420

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG801694420

Diamond specifications and retailer prices

From $854 USD
As of October 30, 2026
Save $4,306 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,160 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG801694420 or 801694420. Listed at 10 retailers as of October 30, 2026, with prices from $854 to $5,160, a $4,306 spread on the same certified stone. Do Amore Diamonds lists it at $5,160. 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
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801694420
Dimensions8.37 × 6.55 × 4.55 mm
L/W Ratio1.28
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
8.37 mm6.55 mm1.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801694420
Side View
Table 57.0%Crown 35°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 58.3%

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 30
Current: $5,160 USD|Low: $854 USD|High: $6,840 USD|Avg: $2,720 USD|-24.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 7$854 USD
Retailer 9$865 USD
Retailer 6$1,108 USD
Retailer 10$1,144 USD
Retailer 2$1,275 USD
Retailer 11$1,565 USD
Retailer 8$2,975 USD
Retailer 5$3,155 USD
Retailer 3$3,752 USD
Retailer 4$4,110 USD
Do Amore Diamonds$5,160 USD

30 data points across 11 retailers

10 retailers$854 USD to $5,160 USD

A
Cheapest Retailer
-
$854 USD
A
Retailer 2
-
$865 USD
View
A
Retailer 3
-
$1,108 USD
View
A
Retailer 4
-
$1,144 USD
View
A
Retailer 5
-
$1,275 USD
€1,214 EUR
View
A
Retailer 6
-
$1,565 USD
A$2,408 AUD
View
Retailer 7
-
$2,975 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$3,155 USD
£2,484 GBP
View
B
Retailer 9
-
$4,110 USD
View
Most Expensive
B
Do Amore Diamonds
27-6E65E0746 · Oct 31
$5,160 USD
View
9 more retailers have this diamond
Prices start from $854 USDSave up to $4,306 USD

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
$854 USD