Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1559434372

Certificate GIA 1559434372

Diamond specifications and retailer prices

From $4,249 USD
As of November 4, 2026
Save $4,369 USD (51%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,618 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559434372. Listed at 7 retailers as of November 2, 2026, with prices from $4,249 to $8,618, a $4,369 spread on the same certified stone. MOH London lists it at $8,618. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559434372
Dimensions7.34 × 7.38 × 4.50 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.34 mm7.38 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559434372
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 61.2%

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: Nov 4
Current: $8,618 USD|Low: $4,249 USD|High: $9,091 USD|Avg: $5,932 USD|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$4,249 USD
Retailer 4$4,803 USD
Retailer 6$5,068 USD
Retailer 7$5,580 USD
Retailer 2$5,920 USD
Retailer 3$6,233 USD
MOH London$8,618 USD

38 data points across 7 retailers

7 retailers$4,249 USD to $8,618 USD

A
Cheapest Retailer
-
$4,249 USD
A
Retailer 2
-
$4,803 USD
View
A
Retailer 3
-
$5,068 USD
View
Retailer 4
-
$5,580 USD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$5,920 USD
View
B+
Retailer 6
-
$6,233 USD
View
Most Expensive
B
MOH London
E45123A58 · Nov 2
$8,618 USD
£6,786 GBP
View
6 more retailers have this diamond
Prices start from $4,249 USDSave up to $4,369 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 Round
$4,249 USD