Round|Natural|GIA

1.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2556412690

Certificate GIA 2556412690

Diamond specifications and retailer prices

From $4,228 USD
As of October 30, 2026
Save $4,686 USD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,222 USD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556412690. Listed at 14 retailers as of October 29, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556412690
Dimensions7.29 × 7.32 × 4.61 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Needle
Top View
7.29 mm7.32 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556412690
Side View
Table 57.0%Crown 36.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.1%

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: Oct 30
Current: $6,274 USD|Low: $4,228 USD|High: $9,056 USD|Avg: $5,850 USD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$4,228 USD
Retailer 10$4,310 USD
Retailer 11$4,930 USD
Retailer 8$5,650 USD
Retailer 9$5,650 USD
Retailer 7$5,840 USD
Retailer 4$6,040 USD
Retailer 5$6,143 USD
Retailer 3$6,153 USD
Retailer 1$6,274 USD
Retailer 6$8,914 USD

30 data points across 11 retailers

14 retailers$4,228 USD to $8,914 USD

A
Cheapest Retailer
-
$4,228 USD
Retailer 2
-
$4,310 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$4,930 USD
View
Retailer 4
-
$4,995 USD
View
Price last confirmed 24 days ago
Retailer 5
-
$5,097 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$5,529 USD
View
B+
Retailer 7
-
$5,650 USD
View
B+
Retailer 8
-
$5,650 USD
View
Retailer 9
-
$5,764 USD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
$5,840 USD
View
B+
Retailer 11
-
$6,040 USD
£4,756 GBP
View
B+
Retailer 12
-
$6,274 USD
€5,975 EUR
View
B
Retailer 13
-
$8,914 USD
£7,019 GBP
View
Most Expensive
NZ Jewellers
e3f72e15-2664-4947-9355-d20b6febb113 · Oct 3
$9,222 USD
View
Price last confirmed 28 days ago
13 more retailers have this diamond
Prices start from $4,228 USDSave up to $4,686 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
$4,228 USD