CaratHunter
Plans
Cushion|Lab Grown|IGI

1.54ct I SI1 Cushion Lab Grown Diamond

VG • I/SI1 • IGI LG651492620

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG651492620

Diamond specifications and retailer prices

From $814 NZD
£360 GBP
As of October 29, 2026
Save $3,034 NZD (79%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,848 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG651492620 or 651492620. Listed at 5 retailers as of October 29, 2026, with prices from $814 to $3,848, a $3,034 spread on the same certified stone. Do Amore Diamonds lists it at $3,848. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.54
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle42.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651492620
Dimensions7.72 × 6.19 × 4.30 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
Pre-existing laser inscription on girdle. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.. Indications of post-growth treatment.
Top View
7.72 mm6.19 mm1.54 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651492620
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 42.5°Culet: NoneDepth 69.5%

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: $3,848 NZD|Low: $629 NZD|High: $4,258 NZD|Avg: $1,509 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9$629 NZD
Retailer 3$814 NZD
Retailer 10$917 NZD
Retailer 4$921 NZD
Retailer 5$996 NZD
Retailer 7$1,044 NZD
Retailer 6$1,398 NZD
Retailer 8$1,982 NZD
Retailer 2$2,444 NZD
Do Amore Diamonds$3,848 NZD

31 data points across 10 retailers

5 retailers$814 NZD to $3,848 NZD

A
Cheapest Retailer
-
$814 NZD
£360 GBP
B+
Retailer 2
-
$921 NZD
$517 USD
View
B+
Retailer 3
-
$996 NZD
$559 USD
View
B+
Retailer 4
-
$2,444 NZD
£1,080 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1660134 · Oct 29
$3,848 NZD
$2,160 USD
View
4 more retailers have this diamond
Prices start from $814 NZDSave up to $3,034 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
1.54ct Cushion
$814 NZD