Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1232503296

Certificate GIA 1232503296

Diamond specifications and retailer prices

From $9,732 NZD
$5,485 USD
As of November 1, 2026
Save $8,218 NZD (46%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $21,615 NZD 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
Colour
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: $12,269 NZD|Low: $9,732 NZD|High: $18,227 NZD|Avg: $12,241 NZD|+2.5%
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 2, 2026
Retailer 6$9,732 NZD
Retailer 2$10,177 NZD
Retailer 8$10,770 NZD
Retailer 13$10,772 NZD
Retailer 4$10,832 NZD
Retailer 5$11,486 NZD
Retailer 9$11,604 NZD
Retailer 7$11,668 NZD
Retailer 15$11,849 NZD
Retailer 1$12,269 NZD
Retailer 17$12,501 NZD
Retailer 10$12,843 NZD
Retailer 16$12,899 NZD
Retailer 18$12,899 NZD
Retailer 3$13,325 NZD
Retailer 14$14,194 NZD
Retailer 12$15,825 NZD
Retailer 11$17,950 NZD

43 data points across 18 retailers

21 retailers$9,732 NZD to $17,950 NZD

A
Cheapest Retailer
-
$9,732 NZD
$5,485 USD
A
Retailer 2
-
$10,177 NZD
$5,736 USD
View
B+
Retailer 3
-
$10,770 NZD
$6,070 USD
View
Final sale: no returns
B+
Retailer 4
-
$10,772 NZD
$6,071 USD
View
B+
Retailer 5
-
$10,832 NZD
$6,105 USD
View
B+
Retailer 6
-
$11,486 NZD
$6,474 USD
View
B+
Retailer 7
-
$11,604 NZD
$6,540 USD
View
B+
Retailer 8
-
$11,668 NZD
$6,576 USD
View
Retailer 9
-
$11,709 NZD
$6,599 USD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
$11,849 NZD
$6,678 USD
View
B+
Retailer 11
-
$12,269 NZD
£5,445 GBP
View
Retailer 12
-
$12,501 NZD
A$10,839 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$12,843 NZD
$7,238 USD
View
B+
Retailer 14
-
$12,899 NZD
$7,270 USD
View
B+
Retailer 15
-
$12,899 NZD
$7,270 USD
View
B
Retailer 16
-
$13,325 NZD
$7,510 USD
View
Retailer 17
-
$13,510 NZD
$7,614 USD
View
Price last confirmed 33 days ago
Retailer 18
-
$14,194 NZD
$8,000 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$15,825 NZD
ZAR 144,086 ZAR
View
B
Retailer 20
-
$17,950 NZD
£7,966 GBP
View
Most Expensive
NZ Jewellers
31c363f7-2741-4b40-8324-1d435581678b · Sep 28
$21,615 NZD
$12,182 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from $9,732 NZDSave up to $8,218 NZD

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
$9,732 NZD