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Cushion|Lab Grown|IGI

1.77ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG841678782

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841678782

Diamond specifications and retailer prices

From $1,079 NZD
£478 GBP
As of November 1, 2026
Save $5,533 NZD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,612 NZD 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG841678782 or 841678782. Listed at 12 retailers as of October 31, 2026, with prices from $1,079 to $6,612, a $5,533 spread on the same certified stone. Do Amore Diamonds lists it at $6,612. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841678782
Dimensions9.09 × 5.98 × 4.18 mm
L/W Ratio1.52
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
9.09 mm5.98 mm1.77 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841678782
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 69.9%

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: $6,612 NZD|Low: $1,079 NZD|High: $9,848 NZD|Avg: $4,050 NZD|-19.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 7$1,079 NZD
Retailer 13$1,333 NZD
Retailer 12$1,456 NZD
Retailer 8$1,592 NZD
Retailer 3$1,955 NZD
Retailer 11$2,375 NZD
Retailer 6$3,747 NZD
Retailer 4$4,646 NZD
Retailer 2$4,976 NZD
Retailer 5$5,112 NZD
Retailer 9$5,210 NZD
Retailer 10$5,901 NZD
Do Amore Diamonds$6,612 NZD

24 data points across 13 retailers

12 retailers$1,079 NZD to $6,612 NZD

A
Cheapest Retailer
-
$1,079 NZD
£478 GBP
A
Retailer 2
-
$1,333 NZD
$750 USD
View
A
Retailer 3
-
$1,456 NZD
$819 USD
View
A
Retailer 4
-
$1,592 NZD
€853 EUR
View
A
Retailer 5
-
$1,955 NZD
$1,100 USD
View
A
Retailer 6
-
$2,375 NZD
A$2,056 AUD
View
B+
Retailer 7
-
$3,747 NZD
£1,660 GBP
View
Retailer 8
-
$4,646 NZD
$2,614 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
$4,976 NZD
$2,800 USD
View
B+
Retailer 10
-
$5,210 NZD
A$4,510 AUD
View
B+
Retailer 11
-
$5,901 NZD
$3,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-17A4E9947 · Oct 31
$6,612 NZD
$3,720 USD
View
11 more retailers have this diamond
Prices start from $1,079 NZDSave up to $5,533 NZD

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
$1,079 NZD