Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1232503296

Certificate GIA 1232503296

Diamond specifications and retailer prices

From $5,485 USD
As of November 1, 2026
Save $4,632 USD (46%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,182 USD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1232503296. Listed at 21 retailers as of November 1, 2026, with a 84% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1232503296
Dimensions7.34 × 7.29 × 4.53 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud
Top View
7.34 mm7.29 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232503296
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: Nov 1
Current: $10,117 USD|Low: $5,485 USD|High: $10,273 USD|Avg: $6,886 USD|-0.5%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 6$5,485 USD
Retailer 2$5,736 USD
Retailer 8$6,070 USD
Retailer 13$6,071 USD
Retailer 4$6,105 USD
Retailer 5$6,474 USD
Retailer 9$6,540 USD
Retailer 7$6,576 USD
Retailer 15$6,678 USD
Retailer 11$6,915 USD
Retailer 17$7,046 USD
Retailer 10$7,238 USD
Retailer 16$7,270 USD
Retailer 18$7,270 USD
Retailer 3$7,510 USD
Retailer 14$8,000 USD
Retailer 12$8,919 USD
Retailer 1$10,117 USD

43 data points across 18 retailers

21 retailers$5,485 USD to $10,117 USD

A
Cheapest Retailer
-
$5,485 USD
A
Retailer 2
-
$5,736 USD
View
B+
Retailer 3
-
$6,070 USD
View
Final sale: no returns
B+
Retailer 4
-
$6,071 USD
View
B+
Retailer 5
-
$6,105 USD
View
B+
Retailer 6
-
$6,474 USD
View
B+
Retailer 7
-
$6,540 USD
View
B+
Retailer 8
-
$6,576 USD
View
Retailer 9
-
$6,599 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$6,678 USD
View
B+
Retailer 11
-
$6,915 USD
£5,445 GBP
View
Retailer 12
-
$7,046 USD
A$10,839 AUD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$7,238 USD
View
B+
Retailer 14
-
$7,270 USD
View
B+
Retailer 15
-
$7,270 USD
View
B
Retailer 16
-
$7,510 USD
View
Retailer 17
-
$7,614 USD
View
Price last confirmed 33 days ago
Retailer 18
-
$8,000 USD
View
Price last confirmed 9 days ago
B
Retailer 19
-
$8,919 USD
ZAR 144,086 ZAR
View
B
Retailer 20
-
$10,117 USD
£7,966 GBP
View
Most Expensive
NZ Jewellers
31c363f7-2741-4b40-8324-1d435581678b · Sep 28
$12,182 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from $5,485 USDSave up to $4,632 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
$5,485 USD