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Round|Natural|GIA

1.51ct N SI1 Round Natural Diamond

VG • N/SI1 • GIA 2225163808

Certificate GIA 2225163808

Diamond specifications and retailer prices

From $4,421 NZD
As of November 5, 2026
Save $5,872 NZD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,293 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 N colour (tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2225163808. Listed at 9 retailers as of November 5, 2026, with prices from $4,421 to $10,293, a $5,872 spread on the same certified stone. NZ Jewellers lists it at $10,293. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
N
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2225163808
Dimensions7.16 × 7.21 × 4.61 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Top View
7.16 mm7.21 mm1.51 ctN / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2225163808
Side View
Table 59.0%Crown 36°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 64.1%

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 5
Current: $10,293 NZD|Low: $3,268 NZD|High: $10,293 NZD|Avg: $5,563 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10$3,268 NZD
Retailer 9$4,421 NZD
Retailer 5$4,460 NZD
Retailer 7$4,460 NZD
Retailer 4$4,666 NZD
Retailer 6$5,146 NZD
Retailer 2$5,719 NZD
Retailer 3$6,009 NZD
Retailer 8$7,091 NZD
NZ Jewellers$10,293 NZD

21 data points across 10 retailers

9 retailers$4,421 NZD to $10,293 NZD

B+
Cheapest Retailer
-
$4,421 NZD
Retailer 2
-
$4,460 NZD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$4,460 NZD
View
B+
Retailer 4
-
$4,666 NZD
View
B
Retailer 5
-
$5,146 NZD
View
B
Retailer 6
-
$5,719 NZD
View
B
Retailer 7
-
$6,009 NZD
View
B
Retailer 8
-
$7,091 NZD
View
Most Expensive
C
NZ Jewellers
0d200bc3-f88b-48ea-9fd2-083b995f5b2c · Nov 5
$10,293 NZD
$5,786 USD
View
8 more retailers have this diamond
Prices start from $4,421 NZDSave up to $5,872 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+
1.51ct Round
$4,421 NZD