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Round|Natural|IGI

1.51ct K SI2 Round Natural Diamond

VG • K/SI2 • IGI 581308742

Shape and cutting style on the report: Round brilliant

Certificate IGI 581308742

Diamond specifications and retailer prices

From $2,325 SGD
As of November 4, 2026
Save $3,832 SGD (62%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,157 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 581308742. Listed at 16 retailers as of November 4, 2026, with prices from $2,325 to $6,157, a $3,832 spread on the same certified stone. NZ Jewellers lists it at $6,157. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle31.8°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 581308742
Dimensions7.35 × 7.26 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.35 mm7.26 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 581308742
Side View
Table 66.0%Crown 31.8°Girdle: MED-THKPavilion 42°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,157 SGD|Low: $1,756 SGD|High: $6,157 SGD|Avg: $3,423 SGD
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
Retailer 14
Retailer 15
November 5, 2026
Retailer 10$2,325 SGD
Retailer 2$2,581 SGD
Retailer 14$2,682 SGD
Retailer 11$2,726 SGD
Retailer 3$2,944 SGD
Retailer 5$2,944 SGD
Retailer 13$3,040 SGD
Retailer 15$3,081 SGD
Retailer 6$3,122 SGD
Retailer 4$3,398 SGD
Retailer 7$3,504 SGD
Retailer 9$3,659 SGD
Retailer 12$4,158 SGD
Retailer 8$5,145 SGD
NZ Jewellers$6,157 SGD

34 data points across 15 retailers

16 retailers$2,325 SGD to $6,157 SGD

Retailer 1
-
$1,756 SGD
Price last confirmed 43 days ago
B+
Retailer 2
-
$2,325 SGD
View
B+
Retailer 3
-
$2,581 SGD
View
B+
Retailer 4
-
$2,659 SGD
View
B+
Retailer 5
-
$2,682 SGD
View
B+
Retailer 6
-
$2,726 SGD
View
B+
Retailer 7
-
$2,944 SGD
View
Retailer 8
-
$2,944 SGD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$3,040 SGD
View
B+
Retailer 10
-
$3,081 SGD
View
B+
Retailer 11
-
$3,122 SGD
View
B+
Retailer 12
-
$3,398 SGD
View
B+
Retailer 13
-
$3,659 SGD
View
B+
Retailer 14
-
$4,158 SGD
View
B+
Retailer 15
-
$5,145 SGD
View
Most Expensive
B
NZ Jewellers
856628e2-e34b-42a0-82cc-1cc28a2772fb · Nov 5
$6,157 SGD
$4,820 USD
View
15 more retailers have this diamond
Prices start from $2,325 SGDSave up to $3,832 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
$2,325 SGD