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Radiant|Lab Grown|IGI

1.53ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG519255515

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

Certificate IGI LG519255515

Diamond specifications and retailer prices

From $287 USD
As of November 6, 2026
Save $885 USD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,172 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct lab-grown radiant diamond

This 1.53ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519255515 or 519255515. Listed at 11 retailers as of November 2, 2026, with prices from $287 to $1,172, a $885 spread on the same certified stone. MOH London lists it at $1,172. 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

1.53
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519255515
Dimensions8.09 × 5.59 × 3.79 mm
L/W Ratio1.45
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
8.09 mm5.59 mm1.53 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519255515
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 31.4°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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: Nov 6
Current: $1,172 USD|Low: $287 USD|High: $1,290 USD|Avg: $671 USD|-9.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$287 USD
Retailer 11$318 USD
Retailer 5$477 USD
Retailer 10$485 USD
Retailer 8$495 USD
Retailer 2$547 USD
Retailer 6$620 USD
Retailer 4$765 USD
Retailer 7$944 USD
Retailer 9$992 USD
MOH London$1,172 USD

42 data points across 11 retailers

11 retailers$287 USD to $1,172 USD

A
Cheapest Retailer
-
$287 USD
Final sale: no returns
Retailer 2
-
$314 USD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$477 USD
View
B+
Retailer 4
-
$495 USD
View
B+
Retailer 5
-
$547 USD
View
B+
Retailer 6
-
$620 USD
View
B+
Retailer 7
-
$765 USD
View
B
Retailer 8
-
$926 USD
View
B
Retailer 9
-
$944 USD
View
B
Retailer 10
-
$992 USD
View
Most Expensive
B
MOH London
LG519255515 · Nov 2
$1,172 USD
£923 GBP
View
10 more retailers have this diamond
Prices start from $287 USDSave up to $885 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
1.53ct Radiant
$287 USD