CaratHunter
Plans
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 $935 NZD
$525 USD
As of October 29, 2026
Save $7,345 NZD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,279 NZD 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 $935 to $8,279, a $7,345 spread on the same certified stone. Brilliant Earth lists it at $8,279. 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

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: Oct 29
Current: $8,279 NZD|Low: $935 NZD|High: $8,279 NZD|Avg: $2,892 NZD
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
October 30, 2026
Retailer 13$935 NZD
Retailer 8$1,034 NZD
Retailer 7$1,442 NZD
Retailer 16$1,442 NZD
Retailer 17$1,494 NZD
Retailer 12$1,567 NZD
Retailer 11$1,711 NZD
Retailer 15$1,779 NZD
Retailer 2$2,511 NZD
Retailer 4$2,519 NZD
Retailer 6$3,210 NZD
Retailer 9$3,282 NZD
Retailer 10$3,381 NZD
Retailer 3$3,713 NZD
Retailer 14$3,824 NZD
Retailer 5$5,199 NZD
Brilliant Earth$8,279 NZD

35 data points across 17 retailers

20 retailers$935 NZD to $8,279 NZD

A
Cheapest Retailer
-
$935 NZD
$525 USD
Final sale: no returns
Retailer 2
-
$1,034 NZD
$581 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$1,185 NZD
HK$5,200 HKD
View
Price last confirmed 55 days ago
A
Retailer 4
-
$1,442 NZD
$810 USD
View
A
Retailer 5
-
$1,442 NZD
$810 USD
View
A
Retailer 6
-
$1,494 NZD
$839 USD
View
A
Retailer 7
-
$1,567 NZD
€838 EUR
View
A
Retailer 8
-
$1,711 NZD
£757 GBP
View
A
Retailer 9
-
$1,779 NZD
ZAR 16,141 ZAR
View
A
Retailer 10
-
$2,511 NZD
$1,410 USD
View
Retailer 11
-
$2,519 NZD
A$2,177 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$3,210 NZD
$1,803 USD
View
Retailer 13
-
$3,282 NZD
SGD 2,491 SGD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$3,381 NZD
$1,899 USD
View
B+
Retailer 15
-
$3,515 NZD
$1,974 USD
View
B+
Retailer 16
-
$3,713 NZD
$2,085 USD
View
B+
Retailer 17
-
$3,824 NZD
£1,691 GBP
View
B+
Retailer 18
-
$5,199 NZD
$2,920 USD
View
Retailer 19
-
$5,288 NZD
$2,970 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
12605322A · Oct 29
$8,279 NZD
$4,650 USD
View
19 more retailers have this diamond
Prices start from $935 NZDSave up to $7,345 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
$935 NZD