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Round|Natural|GIA

1.50ct K I1 Round Natural Diamond

EX • K/I1 • GIA 6422643720

Certificate GIA 6422643720

Diamond specifications and retailer prices

From $3,070 NZD
As of November 5, 2026
Save $5,351 NZD (64%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,421 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6422643720. Listed at 7 retailers as of November 5, 2026, with prices from $3,070 to $8,421, a $5,351 spread on the same certified stone. NZ Jewellers lists it at $8,421. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6422643720
Dimensions7.28 × 7.31 × 4.56 mm
L/W Ratio1.00
Top View
7.28 mm7.31 mm1.50 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6422643720
Side View
Table 56.0%Crown 35°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.5%

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 5
Current: $8,421 NZD|Low: $3,070 NZD|High: $8,421 NZD|Avg: $4,395 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$3,070 NZD
Retailer 6$3,638 NZD
Retailer 4$4,027 NZD
Retailer 5$4,027 NZD
Retailer 8$4,031 NZD
Retailer 3$4,214 NZD
Retailer 7$4,648 NZD
NZ Jewellers$8,421 NZD

41 data points across 8 retailers

7 retailers$3,070 NZD to $8,421 NZD

A
Cheapest Retailer
-
$3,070 NZD
B+
Retailer 2
-
$3,638 NZD
View
Retailer 3
-
$4,027 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$4,027 NZD
View
B+
Retailer 5
-
$4,214 NZD
View
B+
Retailer 6
-
$4,648 NZD
View
Most Expensive
B
NZ Jewellers
884c886c-b087-48e7-9b7a-18db6065c35b · Nov 5
$8,421 NZD
$4,734 USD
View
6 more retailers have this diamond
Prices start from $3,070 NZDSave up to $5,351 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
1.50ct Round
$3,070 NZD