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Round|Natural|GIA

1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2225766939

Certificate GIA 2225766939

Diamond specifications and retailer prices

From $8,352 NZD
As of November 4, 2026
Save $7,108 NZD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $17,600 NZD at NZ Jewellers · As of October 17, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2225766939. Listed at 9 retailers as of November 4, 2026, with a 85% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2225766939
Dimensions7.37 × 7.32 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Crystal, Feather
Top View
7.37 mm7.32 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2225766939
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $10,097 NZD|Low: $8,307 NZD|High: $15,690 NZD|Avg: $10,848 NZD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3$8,352 NZD
Retailer 5$8,420 NZD
Retailer 6$9,117 NZD
Retailer 1$10,097 NZD
Retailer 7$11,607 NZD
Retailer 4$12,929 NZD
Retailer 2$15,460 NZD

42 data points across 7 retailers

9 retailers$8,352 NZD to $15,460 NZD

B+
Cheapest Retailer
-
$8,352 NZD
B+
Retailer 2
-
$8,420 NZD
View
B+
Retailer 3
-
$9,115 NZD
View
B+
Retailer 4
-
$9,117 NZD
View
B+
Retailer 5
-
$10,097 NZD
View
Retailer 6
-
$11,607 NZD
View
Price last confirmed 14 days ago
B
Retailer 7
-
$12,929 NZD
View
B
Retailer 8
-
$15,460 NZD
View
Most Expensive
NZ Jewellers
44aba9e6-ac1d-4d15-8d51-6716819aa4bb · Oct 17
$17,600 NZD
$9,894 USD
View
Price last confirmed 20 days ago
8 more retailers have this diamond
Prices start from $8,352 NZDSave up to $7,108 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.

B+
1.53ct Round
$8,352 NZD