CaratHunter
Plans
Radiant|Lab Grown|IGI

1.54ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG474120572

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

Certificate IGI LG474120572

Diamond specifications and retailer prices

From $341 NZD
$192 USD
As of October 27, 2026
Save $2,924 NZD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,265 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 top-tier cut grade and certified by IGI LG474120572 or 474120572. Listed at 11 retailers as of October 27, 2026, with prices from $341 to $3,265, a $2,924 spread on the same certified stone. Do Amore Diamonds lists it at $3,265. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474120572
Dimensions7.43 × 5.89 × 3.94 mm
L/W Ratio1.26
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
7.43 mm5.89 mm1.54 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474120572
Side View
Table 60.0%Crown 44.9°Girdle: MED-STKPavilion 30.9°Culet: NoneDepth 66.9%

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 27
Current: $3,265 NZD|Low: $189 NZD|High: $3,300 NZD|Avg: $1,257 NZD|-1.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 5$189 NZD
Retailer 8$341 NZD
Retailer 11$381 NZD
Retailer 6$521 NZD
Retailer 9$736 NZD
Retailer 3$831 NZD
Retailer 13$976 NZD
Retailer 4$987 NZD
Retailer 7$1,361 NZD
Retailer 2$1,877 NZD
Retailer 10$2,271 NZD
Retailer 12$2,573 NZD
Do Amore Diamonds$3,265 NZD

38 data points across 13 retailers

11 retailers$341 NZD to $3,265 NZD

A
Cheapest Retailer
-
$341 NZD
$192 USD
A
Retailer 2
-
$381 NZD
$215 USD
View
Final sale: no returns
A
Retailer 3
-
$394 NZD
$222 USD
View
A
Retailer 4
-
$521 NZD
£231 GBP
View
B+
Retailer 5
-
$736 NZD
$415 USD
View
B
Retailer 6
-
$1,361 NZD
$767 USD
View
B
Retailer 7
-
$1,498 NZD
$844 USD
View
B
Retailer 8
-
$1,877 NZD
£833 GBP
View
B
Retailer 9
-
$2,271 NZD
$1,280 USD
View
B
Retailer 10
-
$2,573 NZD
$1,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-C919A0841 · Oct 29
$3,265 NZD
$1,840 USD
View
10 more retailers have this diamond
Prices start from $341 NZDSave up to $2,924 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 Radiant
$341 NZD