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Round|Natural|GIA

1.51ct K IF Round Natural Diamond

EX • K/IF • GIA 6555600975

Certificate GIA 6555600975

Diamond specifications and retailer prices

From $6,130 SGD
As of November 6, 2026
Save $2,272 SGD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,402 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6555600975. Listed at 8 retailers as of November 5, 2026, with prices from $6,130 to $8,402, a $2,272 spread on the same certified stone. Blue Nile lists it at $8,402. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555600975
Dimensions7.29 × 7.26 × 4.56 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.29 mm7.26 mm1.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555600975
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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 6
Current: $8,402 SGD|Low: $6,130 SGD|High: $8,835 SGD|Avg: $7,316 SGD|-4.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$6,130 SGD
Retailer 4$6,853 SGD
Retailer 5$7,154 SGD
Retailer 3$7,369 SGD
Retailer 6$7,388 SGD
Retailer 7$7,535 SGD
Blue Nile$8,402 SGD

45 data points across 7 retailers

8 retailers$6,130 SGD to $8,402 SGD

A
Cheapest Retailer
-
$6,130 SGD
A
Retailer 2
-
$6,853 SGD
View
A
Retailer 3
-
$7,154 SGD
View
A
Retailer 4
-
$7,369 SGD
View
B+
Retailer 5
-
$7,388 SGD
View
Final sale: no returns
A
Retailer 6
-
$7,535 SGD
View
B+
Retailer 7
-
$7,785 SGD
View
Most Expensive
B+
Blue Nile
29519225 · Nov 5
$8,402 SGD
$6,578 USD
View
7 more retailers have this diamond
Prices start from $6,130 SGDSave up to $2,272 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
$6,130 SGD