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Round|Natural|GIA

1.51ct K I1 Round Natural Diamond

EX • K/I1 • GIA 6415821107

Certificate GIA 6415821107

Diamond specifications and retailer prices

From $3,787 SGD
As of November 5, 2026
Save $4,937 SGD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,724 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 6415821107. Listed at 8 retailers as of November 5, 2026, with prices from $3,787 to $8,724, a $4,937 spread on the same certified stone. NZ Jewellers lists it at $8,724. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6415821107
Dimensions7.37 × 7.39 × 4.57 mm
L/W Ratio1.00
Top View
7.37 mm7.39 mm1.51 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6415821107
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
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 5
Current: $8,724 SGD|Low: $3,787 SGD|High: $8,724 SGD|Avg: $5,223 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$3,787 SGD
Retailer 7$4,407 SGD
Retailer 9$4,674 SGD
Retailer 4$5,007 SGD
Retailer 5$5,007 SGD
Retailer 6$5,007 SGD
Retailer 2$5,621 SGD
Retailer 8$5,777 SGD
NZ Jewellers$8,724 SGD

43 data points across 9 retailers

8 retailers$3,787 SGD to $8,724 SGD

A
Cheapest Retailer
-
$3,787 SGD
B+
Retailer 2
-
$4,407 SGD
View
Retailer 3
-
$5,007 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$5,007 SGD
View
B+
Retailer 5
-
$5,007 SGD
View
B
Retailer 6
-
$5,621 SGD
View
B
Retailer 7
-
$5,777 SGD
View
Most Expensive
C
NZ Jewellers
0ff528ff-8f04-46f5-aefe-607847c55df1 · Nov 5
$8,724 SGD
$6,830 USD
View
7 more retailers have this diamond
Prices start from $3,787 SGDSave up to $4,937 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
$3,787 SGD