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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 $2,485 USD
As of November 5, 2026
Save $3,301 USD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,786 USD 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 $2,485 to $5,786, a $3,301 spread on the same certified stone. NZ Jewellers lists it at $5,786. 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
Color
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: $5,786 USD|Low: $1,837 USD|High: $5,786 USD|Avg: $3,127 USD
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$1,837 USD
Retailer 9$2,485 USD
Retailer 5$2,507 USD
Retailer 7$2,507 USD
Retailer 4$2,623 USD
Retailer 6$2,893 USD
Retailer 2$3,215 USD
Retailer 3$3,378 USD
Retailer 8$3,986 USD
NZ Jewellers$5,786 USD

21 data points across 10 retailers

9 retailers$2,485 USD to $5,786 USD

B+
Cheapest Retailer
-
$2,485 USD
Retailer 2
-
$2,507 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$2,507 USD
View
B+
Retailer 4
-
$2,623 USD
View
B
Retailer 5
-
$2,893 USD
View
B
Retailer 6
-
$3,215 USD
View
B
Retailer 7
-
$3,378 USD
View
B
Retailer 8
-
$3,986 USD
View
Most Expensive
C
NZ Jewellers
0d200bc3-f88b-48ea-9fd2-083b995f5b2c · Nov 5
$5,786 USD
View
8 more retailers have this diamond
Prices start from $2,485 USDSave up to $3,301 USD

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
$2,485 USD