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Round|Natural|GIA

1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6565303701

Certificate GIA 6565303701

Diamond specifications and retailer prices

From $5,853 NZD
As of November 4, 2026
Save $1,404 NZD (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,256 NZD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 6565303701. Listed at 6 retailers as of November 4, 2026, with prices from $5,853 to $7,256, a $1,404 spread on the same certified stone. Blue Nile lists it at $7,256. 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6565303701
Dimensions7.32 × 7.36 × 4.59 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.32 mm7.36 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6565303701
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°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 4
Current: $7,256 NZD|Low: $5,159 NZD|High: $7,256 NZD|Avg: $6,603 NZD|+0.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$5,853 NZD
Retailer 5$6,224 NZD
Retailer 4$6,696 NZD
Retailer 6$7,085 NZD
Retailer 2$7,091 NZD
Blue Nile$7,256 NZD

26 data points across 6 retailers

6 retailers$5,853 NZD to $7,256 NZD

A
Cheapest Retailer
-
$5,853 NZD
A
Retailer 2
-
$6,224 NZD
View
Final sale: no returns
B+
Retailer 3
-
$6,696 NZD
View
B+
Retailer 4
-
$7,085 NZD
View
B+
Retailer 5
-
$7,091 NZD
View
Most Expensive
B+
Blue Nile
30420837 · Nov 5
$7,256 NZD
$4,079 USD
View
5 more retailers have this diamond
Prices start from $5,853 NZDSave up to $1,404 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
$5,853 NZD