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Radiant|Lab Grown|IGI

1.54ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG566331217

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

Certificate IGI LG566331217

Diamond specifications and retailer prices

From $981 NZD
$552 USD
As of November 1, 2026
Save $3,578 NZD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,559 NZD at MOH London · As of October 29, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG566331217 or 566331217. Listed at 13 retailers as of October 29, 2026, with prices from $981 to $4,559, a $3,578 spread on the same certified stone. MOH London lists it at $4,559. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566331217
Dimensions7.42 × 5.68 × 3.88 mm
L/W Ratio1.31
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
7.42 mm5.68 mm1.54 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566331217
Side View
Table 68.0%Crown 41.2°Girdle: MediumPavilion 30°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,559 NZD|Low: $700 NZD|High: $4,589 NZD|Avg: $1,789 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$876 NZD
Retailer 3$981 NZD
Retailer 12$981 NZD
Retailer 4$1,084 NZD
Retailer 9$1,086 NZD
Retailer 7$1,333 NZD
Retailer 5$1,583 NZD
Retailer 11$1,690 NZD
Retailer 2$1,807 NZD
Retailer 10$2,858 NZD
Retailer 6$2,920 NZD
MOH London$4,559 NZD

43 data points across 12 retailers

13 retailers$981 NZD to $4,559 NZD

Retailer 1
-
$876 NZD
$493 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
$981 NZD
$552 USD
View
Final sale: no returns
Retailer 3
-
$981 NZD
$552 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$1,084 NZD
$610 USD
View
Retailer 5
-
$1,086 NZD
$611 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,333 NZD
$750 USD
View
B
Retailer 7
-
$1,583 NZD
€848 EUR
View
B
Retailer 8
-
$1,690 NZD
$951 USD
View
B
Retailer 9
-
$1,807 NZD
£800 GBP
View
B
Retailer 10
-
$2,525 NZD
£1,119 GBP
View
Retailer 11
-
$2,858 NZD
$1,608 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$2,920 NZD
$1,643 USD
View
Most Expensive
B
MOH London
LG566331217 · Oct 29
$4,559 NZD
£2,020 GBP
View
12 more retailers have this diamond
Prices start from $981 NZDSave up to $3,578 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.

B+
1.54ct Radiant
$981 NZD