CaratHunter
Plans
Cushion|Lab Grown|IGI

1.28ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG843667683

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843667683

Diamond specifications and retailer prices

From $733 NZD
As of November 4, 2026
Save $3,897 NZD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,630 NZD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843667683 or 843667683. Listed at 11 retailers as of November 4, 2026, with prices from $733 to $4,630, a $3,897 spread on the same certified stone. Do Amore Diamonds lists it at $4,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843667683
Dimensions8.53 × 5.37 × 3.53 mm
L/W Ratio1.59
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
8.53 mm5.37 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843667683
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 31.6°Culet: NoneDepth 65.7%

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 4
Current: $4,630 NZD|Low: $644 NZD|High: $5,659 NZD|Avg: $2,285 NZD|-18.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 4$733 NZD
Retailer 10$922 NZD
Retailer 11$1,059 NZD
Retailer 6$1,180 NZD
Retailer 3$1,219 NZD
Retailer 5$1,754 NZD
Retailer 9$2,723 NZD
Retailer 2$2,851 NZD
Retailer 7$3,158 NZD
Retailer 8$3,335 NZD
Do Amore Diamonds$4,630 NZD

22 data points across 11 retailers

11 retailers$733 NZD to $4,630 NZD

A
Cheapest Retailer
-
$733 NZD
A
Retailer 2
-
$922 NZD
View
A
Retailer 3
-
$1,059 NZD
View
A
Retailer 4
-
$1,180 NZD
View
A
Retailer 5
-
$1,219 NZD
View
A
Retailer 6
-
$1,754 NZD
View
Retailer 7
-
$2,723 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,851 NZD
View
B
Retailer 9
-
$3,158 NZD
View
B+
Retailer 10
-
$3,335 NZD
View
Most Expensive
B
Do Amore Diamonds
27-5C60E91B3 · Nov 4
$4,630 NZD
$2,610 USD
View
10 more retailers have this diamond
Prices start from $733 NZDSave up to $3,897 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
1.28ct Cushion
$733 NZD