Radiant|Lab Grown|IGI

1.54ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG523298092

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

Certificate IGI LG523298092

Diamond specifications and retailer prices

From $289 USD
As of October 30, 2026
Save $892 USD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,181 USD at MOH London · As of October 26, 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 LG523298092 or 523298092. Listed at 15 retailers as of October 26, 2026, with prices from $289 to $1,181, a $892 spread on the same certified stone. MOH London lists it at $1,181. 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 angle41.5°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523298092
Dimensions7.72 × 5.62 × 3.88 mm
L/W Ratio1.37
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
7.72 mm5.62 mm1.54 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523298092
Side View
Table 64.0%Crown 41.5°Girdle: MED-STKPavilion 30.3°Culet: NoneDepth 69.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,181 USD|Low: $237 USD|High: $1,298 USD|Avg: $609 USD|-8.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 9$237 USD
Retailer 7$275 USD
Retailer 6$289 USD
Retailer 14$294 USD
Retailer 5$320 USD
Retailer 13$497 USD
Retailer 8$522 USD
Retailer 4$530 USD
Retailer 2$552 USD
Retailer 11$622 USD
Retailer 10$946 USD
Retailer 12$949 USD
Retailer 3$998 USD
MOH London$1,181 USD

43 data points across 14 retailers

15 retailers$289 USD to $1,181 USD

Retailer 1
-
$237 USD
Price last confirmed 12 days ago
Retailer 2
-
$275 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$289 USD
View
Final sale: no returns
Retailer 4
-
$294 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$294 USD
View
Price last confirmed 12 days ago
Retailer 6
-
$316 USD
View
Price last confirmed 36 days ago
B+
Retailer 7
-
$497 USD
View
B+
Retailer 8
-
$522 USD
View
B+
Retailer 9
-
$552 USD
£435 GBP
View
B+
Retailer 10
-
$622 USD
View
Retailer 11
-
$946 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$949 USD
View
B
Retailer 13
-
$952 USD
£750 GBP
View
B
Retailer 14
-
$998 USD
View
Most Expensive
B
MOH London
LG523298092 · Oct 26
$1,181 USD
£930 GBP
View
14 more retailers have this diamond
Prices start from $289 USDSave up to $892 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 Radiant
$289 USD