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Round|Natural|GIA

1.51ct N SI1 Round Natural Diamond

VG • N/SI1 • GIA 2477655294

Certificate GIA 2477655294

Diamond specifications and retailer prices

From $5,429 SGD
As of November 5, 2026
Save $2,298 SGD (30%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $11,033 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 2477655294. Listed at 8 retailers as of November 5, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2477655294
Dimensions7.18 × 7.22 × 4.56 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
7.18 mm7.22 mm1.51 ctN / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2477655294
Side View
Table 57.0%Crown 37°Girdle: ThickPavilion 40.8°Culet: NoneDepth 63.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,033 SGD|Low: $4,417 SGD|High: $11,033 SGD|Avg: $6,902 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$4,417 SGD
Retailer 4$5,429 SGD
Retailer 5$5,738 SGD
Retailer 6$5,738 SGD
Retailer 8$5,738 SGD
Retailer 7$6,620 SGD
Retailer 3$7,112 SGD
Retailer 2$7,726 SGD
Retailer 9$9,268 SGD
NZ Jewellers$11,033 SGD

24 data points across 10 retailers

8 retailers$5,429 SGD to $7,726 SGD

B
Cheapest Retailer
-
$5,429 SGD
Retailer 2
-
$5,738 SGD
View
Price last confirmed 8 days ago
B
Retailer 3
-
$5,738 SGD
View
B
Retailer 4
-
$5,738 SGD
View
C
Retailer 5
-
$6,620 SGD
View
C
Retailer 6
-
$7,112 SGD
View
C
Retailer 7
-
$7,726 SGD
View
Most Expensive
NZ Jewellers
149fd3a0-fdc6-425c-8fef-6ae6240cda24 · Nov 5
$11,033 SGD
$8,638 USD
View
Price under review
7 more retailers have this diamond
Prices start from $5,429 SGDSave up to $2,298 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
$5,429 SGD