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Round|Natural|GIA

1.51ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7561487212

Certificate GIA 7561487212

Diamond specifications and retailer prices

From $4,184 SGD
As of November 6, 2026
Save $5,724 SGD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,444 SGD at NZ Jewellers · As of October 9, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7561487212. Listed at 18 retailers as of November 5, 2026, with a 137% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7561487212
Dimensions7.29 × 7.24 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.29 mm7.24 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7561487212
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,908 SGD|Low: $4,136 SGD|High: $10,444 SGD|Avg: $6,247 SGD|-5.1%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 18$4,184 SGD
Retailer 10$4,509 SGD
Retailer 17$4,653 SGD
Retailer 19$5,003 SGD
Retailer 4$5,033 SGD
Retailer 6$5,250 SGD
Retailer 14$5,255 SGD
Retailer 13$5,265 SGD
Retailer 9$5,351 SGD
Retailer 5$5,522 SGD
Retailer 7$5,837 SGD
Retailer 3$6,007 SGD
Retailer 12$6,192 SGD
Retailer 11$6,431 SGD
Retailer 15$6,938 SGD
Retailer 8$7,104 SGD
Retailer 2$8,787 SGD
Retailer 16$9,033 SGD
NZ Jewellers$9,908 SGD

27 data points across 19 retailers

18 retailers$4,184 SGD to $9,908 SGD

A
Cheapest Retailer
-
$4,184 SGD
Retailer 2
-
$4,509 SGD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$4,653 SGD
View
A
Retailer 4
-
$5,003 SGD
View
A
Retailer 5
-
$5,033 SGD
View
B+
Retailer 6
-
$5,250 SGD
View
Final sale: no returns
B+
Retailer 7
-
$5,255 SGD
View
B+
Retailer 8
-
$5,265 SGD
View
B+
Retailer 9
-
$5,351 SGD
View
B+
Retailer 10
-
$5,522 SGD
View
B+
Retailer 11
-
$5,837 SGD
View
B+
Retailer 12
-
$6,007 SGD
View
B+
Retailer 13
-
$6,192 SGD
View
B
Retailer 14
-
$6,938 SGD
View
B
Retailer 15
-
$8,787 SGD
View
B
Retailer 16
-
$9,033 SGD
View
B
Retailer 17
-
$9,908 SGD
View
Most Expensive
NZ Jewellers
576f1a53-d4c8-45e6-8ec8-5f967e3b2114 · Oct 9
$10,444 SGD
$8,177 USD
View
Price last confirmed 28 days ago
17 more retailers have this diamond
Prices start from $4,184 SGDSave up to $5,724 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.

A
1.51ct Round
$4,184 SGD