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Round|Natural|GIA

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6561440326

Certificate GIA 6561440326

Diamond specifications and retailer prices

From $2,627 SGD
As of November 5, 2026
Save $2,490 SGD (49%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,118 SGD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

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 6561440326. Listed at 9 retailers as of November 4, 2026, with prices from $2,627 to $5,118, a $2,490 spread on the same certified stone. Wholesale Diamonds Direct lists it at $5,118. 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 angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561440326
Dimensions7.33 × 4.55 × 4.55 mm
L/W Ratio1.61
Culet sizeNone
Top View
7.33 mm4.55 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561440326
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.9%

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: $2,627 SGD|Low: $2,613 SGD|High: $5,792 SGD|Avg: $3,883 SGD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$2,627 SGD
Retailer 7$3,123 SGD
Retailer 4$3,266 SGD
Retailer 6$3,266 SGD
Retailer 3$3,312 SGD
Retailer 2$3,745 SGD
Retailer 5$3,884 SGD
Retailer 8$4,085 SGD
Wholesale Diamonds Direct$5,118 SGD

18 data points across 9 retailers

9 retailers$2,627 SGD to $5,118 SGD

A
Cheapest Retailer
-
$2,627 SGD
A
Retailer 2
-
$3,123 SGD
View
A
Retailer 3
-
$3,266 SGD
View
A
Retailer 4
-
$3,266 SGD
View
A
Retailer 5
-
$3,312 SGD
View
A
Retailer 6
-
$3,745 SGD
View
A
Retailer 7
-
$3,884 SGD
View
Retailer 8
-
$4,085 SGD
View
Price last confirmed 11 days ago
Most Expensive
B+
Wholesale Diamonds Direct
570704302 · Nov 4
$5,118 SGD
$4,007 USD
View
8 more retailers have this diamond
Prices start from $2,627 SGDSave up to $2,490 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
$2,627 SGD