CaratHunter
Plans
Radiant|Lab Grown|IGI

1.54ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG526270546

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG526270546

Diamond specifications and retailer prices

From $2,821 NZD
$1,590 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $2,821 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG526270546 or 526270546. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526270546
Dimensions7.91 × 5.62 × 3.79 mm
L/W Ratio1.41
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
7.91 mm5.62 mm1.54 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526270546
Side View
Table 64.0%Crown 42.6°Girdle: MED-STKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
C
Average
Compare with similar diamonds
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,821 NZD|Low: $189 NZD|High: $3,105 NZD|Avg: $1,204 NZD|+16.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 22, 2026
Retailer 7$189 NZD
Retailer 2$554 NZD
Retailer 6$596 NZD
Retailer 8$657 NZD
Retailer 3$910 NZD
Retailer 5$1,065 NZD
Retailer 4$1,201 NZD
Retailer 10$1,431 NZD
Retailer 9$1,874 NZD
Brilliant Earth$2,821 NZD

74 data points across 10 retailers

1 retailer

C
Brilliant Earth
13394812A · Oct 31
$2,821 NZD
$1,590 USD
View

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.

C
1.54ct Radiant
$2,821 NZD