CaratHunter
Plans
Round|Natural|GIA

1.51ct K I1 Round Natural Diamond

EX • K/I1 • GIA 6422460858

Certificate GIA 6422460858

Diamond specifications and retailer prices

From $5,214 NZD
As of November 6, 2026
Save $6,972 NZD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,185 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 6422460858. Listed at 8 retailers as of November 5, 2026, with prices from $5,214 to $12,185, a $6,972 spread on the same certified stone. NZ Jewellers lists it at $12,185. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6422460858
Dimensions7.33 × 7.30 × 4.57 mm
L/W Ratio1.00
Top View
7.33 mm7.30 mm1.51 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6422460858
Side View
Table 57.0%Crown 36°Girdle: MED-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 6
Current: $12,185 NZD|Low: $5,168 NZD|High: $12,185 NZD|Avg: $7,199 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 7$5,214 NZD
Retailer 6$5,452 NZD
Retailer 3$5,625 NZD
Retailer 12$5,691 NZD
Retailer 9$6,336 NZD
Retailer 11$6,336 NZD
Retailer 8$6,580 NZD
Retailer 5$6,680 NZD
Retailer 10$7,311 NZD
Retailer 2$7,854 NZD
Retailer 13$8,322 NZD
Retailer 4$9,891 NZD
NZ Jewellers$12,185 NZD

24 data points across 13 retailers

8 retailers$5,214 NZD to $12,185 NZD

B+
Cheapest Retailer
-
$5,214 NZD
A
Retailer 2
-
$5,452 NZD
View
Retailer 3
-
$6,336 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$6,336 NZD
View
B+
Retailer 5
-
$6,580 NZD
View
B
Retailer 6
-
$7,311 NZD
View
B
Retailer 7
-
$7,854 NZD
View
Most Expensive
C
NZ Jewellers
56c14851-5019-4e7f-a5c6-c9a71134b5aa · Nov 5
$12,185 NZD
$6,850 USD
View
7 more retailers have this diamond
Prices start from $5,214 NZDSave up to $6,972 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
1.51ct Round
$5,214 NZD