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Round|Natural|GIA

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1477667158

Certificate GIA 1477667158

Diamond specifications and retailer prices

From $5,724 SGD
As of November 4, 2026
Save $5,589 SGD (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,313 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 top-tier cut grade and certified by GIA 1477667158. Listed at 13 retailers as of November 4, 2026, with prices from $5,724 to $11,313, a $5,589 spread on the same certified stone. NZ Jewellers lists it at $11,313. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1477667158
Dimensions7.35 × 7.30 × 4.56 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Cloud, Needle
Top View
7.35 mm7.30 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1477667158
Side View
Table 58.0%Crown 36.5°Girdle: -NUPavilion 41°Culet: NoneDepth 62.2%

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 4
Current: $8,927 SGD|Low: $5,724 SGD|High: $10,902 SGD|Avg: $7,335 SGD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$5,724 SGD
Retailer 6$5,900 SGD
Retailer 5$5,971 SGD
Retailer 3$6,642 SGD
Retailer 8$6,765 SGD
Retailer 2$7,190 SGD
Retailer 1$8,927 SGD
Retailer 4$10,743 SGD

44 data points across 8 retailers

13 retailers$5,724 SGD to $11,313 SGD

B+
Cheapest Retailer
-
$5,724 SGD
B+
Retailer 2
-
$5,900 SGD
View
B+
Retailer 3
-
$5,971 SGD
View
B+
Retailer 4
-
$6,642 SGD
View
B
Retailer 5
-
$6,715 SGD
View
B
Retailer 6
-
$6,765 SGD
View
B
Retailer 7
-
$6,765 SGD
View
B
Retailer 8
-
$6,959 SGD
View
B+
Retailer 9
-
$7,190 SGD
View
B
Retailer 10
-
$7,804 SGD
View
B
Retailer 11
-
$8,927 SGD
View
B
Retailer 12
-
$10,743 SGD
View
Most Expensive
C
NZ Jewellers
97904990-d689-4c74-87d2-ab871c0af8d1 · Nov 5
$11,313 SGD
$8,857 USD
View
12 more retailers have this diamond
Prices start from $5,724 SGDSave up to $5,589 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
$5,724 SGD