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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 $456 USD
£359 GBP
As of October 30, 2026
Save $1,704 USD (79%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,160 USD at Do Amore Diamonds · As of October 31, 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 30, 2026, with prices from $456 to $2,160, a $1,704 spread on the same certified stone. Do Amore Diamonds lists it at $2,160. 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
Color
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 30
Current: $2,160 USD|Low: $353 USD|High: $2,390 USD|Avg: $847 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$353 USD
Retailer 2$456 USD
Retailer 10$515 USD
Retailer 4$517 USD
Retailer 5$559 USD
Retailer 7$586 USD
Retailer 6$785 USD
Retailer 8$1,113 USD
Retailer 3$1,372 USD
Do Amore Diamonds$2,160 USD

32 data points across 10 retailers

5 retailers$456 USD to $2,160 USD

A
Cheapest Retailer
-
$456 USD
£359 GBP
B+
Retailer 2
-
$517 USD
View
B+
Retailer 3
-
$559 USD
View
B+
Retailer 4
-
$1,372 USD
£1,080 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1660134 · Oct 31
$2,160 USD
View
4 more retailers have this diamond
Prices start from $456 USDSave up to $1,704 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
1.54ct Cushion
$456 USD