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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 $3,174 SGD
As of November 5, 2026
Save $4,216 SGD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,390 SGD 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 $3,174 to $7,390, a $4,216 spread on the same certified stone. NZ Jewellers lists it at $7,390. 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: $7,390 SGD|Low: $2,346 SGD|High: $7,390 SGD|Avg: $3,994 SGD
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$2,346 SGD
Retailer 9$3,174 SGD
Retailer 5$3,202 SGD
Retailer 7$3,202 SGD
Retailer 4$3,350 SGD
Retailer 6$3,695 SGD
Retailer 2$4,107 SGD
Retailer 3$4,315 SGD
Retailer 8$5,091 SGD
NZ Jewellers$7,390 SGD

21 data points across 10 retailers

9 retailers$3,174 SGD to $7,390 SGD

B+
Cheapest Retailer
-
$3,174 SGD
Retailer 2
-
$3,202 SGD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$3,202 SGD
View
B+
Retailer 4
-
$3,350 SGD
View
B
Retailer 5
-
$3,695 SGD
View
B
Retailer 6
-
$4,107 SGD
View
B
Retailer 7
-
$4,315 SGD
View
B
Retailer 8
-
$5,091 SGD
View
Most Expensive
C
NZ Jewellers
0d200bc3-f88b-48ea-9fd2-083b995f5b2c · Nov 5
$7,390 SGD
$5,786 USD
View
8 more retailers have this diamond
Prices start from $3,174 SGDSave up to $4,216 SGD

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
$3,174 SGD