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 $552 USD
As of November 1, 2026
Save $2,013 USD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,565 USD 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 $552 to $2,565, a $2,013 spread on the same certified stone. MOH London lists it at $2,565. 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
Color
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

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $2,565 USD|Low: $394 USD|High: $2,582 USD|Avg: $1,004 USD|-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 1, 2026
Retailer 8$493 USD
Retailer 3$552 USD
Retailer 12$552 USD
Retailer 4$610 USD
Retailer 9$611 USD
Retailer 7$750 USD
Retailer 5$890 USD
Retailer 11$951 USD
Retailer 2$1,016 USD
Retailer 10$1,608 USD
Retailer 6$1,643 USD
MOH London$2,565 USD

43 data points across 12 retailers

13 retailers$552 USD to $2,565 USD

Retailer 1
-
$493 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$552 USD
View
Final sale: no returns
Retailer 3
-
$552 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$610 USD
View
Retailer 5
-
$611 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$750 USD
View
B
Retailer 7
-
$890 USD
€848 EUR
View
B
Retailer 8
-
$951 USD
View
B
Retailer 9
-
$1,016 USD
£800 GBP
View
B
Retailer 10
-
$1,421 USD
£1,119 GBP
View
Retailer 11
-
$1,608 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
$1,643 USD
View
Most Expensive
B
MOH London
LG566331217 · Oct 29
$2,565 USD
£2,020 GBP
View
12 more retailers have this diamond
Prices start from $552 USDSave up to $2,013 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.

B+
1.54ct Radiant
$552 USD