Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2536668605

Certificate GIA 2536668605

Diamond specifications and retailer prices

From $9,580 NZD
$5,390 USD
As of November 1, 2026
Save $8,816 NZD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $21,436 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 2536668605. Listed at 12 retailers as of November 1, 2026, with a 92% 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
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2536668605
Dimensions7.37 × 7.34 × 4.59 mm
L/W Ratio1.00
Top View
7.37 mm7.34 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536668605
Side View
Table 56.0%CrownGirdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: $13,386 NZD|Low: $9,580 NZD|High: $18,495 NZD|Avg: $12,851 NZD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$9,580 NZD
Retailer 3$10,207 NZD
Retailer 9$10,378 NZD
Retailer 6$10,419 NZD
Retailer 4$13,099 NZD
Retailer 8$13,099 NZD
Retailer 1$13,386 NZD
Retailer 7$13,525 NZD
Retailer 2$18,396 NZD

31 data points across 9 retailers

12 retailers$9,580 NZD to $18,396 NZD

A
Cheapest Retailer
-
$9,580 NZD
$5,390 USD
A
Retailer 2
-
$10,207 NZD
€5,470 EUR
View
B+
Retailer 3
-
$10,378 NZD
$5,839 USD
View
Final sale: no returns
B+
Retailer 4
-
$10,419 NZD
$5,862 USD
View
Retailer 5
-
$11,611 NZD
$6,533 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$11,791 NZD
$6,634 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
$13,099 NZD
$7,370 USD
View
B+
Retailer 8
-
$13,099 NZD
$7,370 USD
View
B+
Retailer 9
-
$13,386 NZD
€7,173 EUR
View
B
Retailer 10
-
$13,525 NZD
$7,610 USD
View
B
Retailer 11
-
$18,396 NZD
£8,150 GBP
View
Most Expensive
NZ Jewellers
ac380ade-53ad-4010-a87c-161757203340 · Sep 28
$21,436 NZD
$12,061 USD
View
Price last confirmed 35 days ago
11 more retailers have this diamond
Prices start from $9,580 NZDSave up to $8,816 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
$9,580 NZD