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Round|Natural|GIA

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1519562206

Certificate GIA 1519562206

Diamond specifications and retailer prices

From $5,325 SGD
As of November 6, 2026
Save $6,431 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,756 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 1519562206. Listed at 19 retailers as of November 5, 2026, with prices from $5,325 to $11,756, a $6,431 spread on the same certified stone. NZ Jewellers lists it at $11,756. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1519562206
Dimensions7.31 × 7.34 × 4.50 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Top View
7.31 mm7.34 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519562206
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.4%

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 6
Current: $9,278 SGD|Low: $5,325 SGD|High: $11,330 SGD|Avg: $8,005 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$5,325 SGD
Retailer 2$6,747 SGD
Retailer 3$7,448 SGD
Retailer 1$9,278 SGD
Retailer 4$11,165 SGD

44 data points across 5 retailers

19 retailers$5,325 SGD to $11,756 SGD

B+
Cheapest Retailer
-
$5,325 SGD
B+
Retailer 2
-
$5,399 SGD
View
B+
Retailer 3
-
$5,554 SGD
View
B+
Retailer 4
-
$5,621 SGD
View
B+
Retailer 5
-
$5,927 SGD
View
B+
Retailer 6
-
$6,309 SGD
View
Retailer 7
-
$6,369 SGD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$6,369 SGD
View
B
Retailer 9
-
$6,369 SGD
View
B
Retailer 10
-
$6,477 SGD
View
B
Retailer 11
-
$6,708 SGD
View
B
Retailer 12
-
$6,747 SGD
View
B
Retailer 13
-
$7,348 SGD
View
B
Retailer 14
-
$7,448 SGD
View
Retailer 15
-
$7,756 SGD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$9,278 SGD
View
B
Retailer 17
-
$10,179 SGD
View
B
Retailer 18
-
$11,165 SGD
View
Most Expensive
C
NZ Jewellers
67ce5f8e-58e4-4c56-af8b-5abe8657d6f5 · Nov 5
$11,756 SGD
$9,204 USD
View
18 more retailers have this diamond
Prices start from $5,325 SGDSave up to $6,431 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
$5,325 SGD