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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 €4,276 EUR
As of November 6, 2026
Save €1,585 EUR (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €5,861 EUR 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 €4,276 to €5,861, a €1,585 spread on the same certified stone. Blue Nile lists it at €5,861. 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: €5,861 EUR|Low: €4,276 EUR|High: €6,163 EUR|Avg: €5,103 EUR|-4.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2€4,276 EUR
Retailer 4€4,780 EUR
Retailer 5€4,990 EUR
Retailer 3€5,140 EUR
Retailer 6€5,153 EUR
Retailer 7€5,256 EUR
Blue Nile€5,861 EUR

45 data points across 7 retailers

8 retailers€4,276 EUR to €5,861 EUR

A
Cheapest Retailer
-
€4,276 EUR
A
Retailer 2
-
€4,780 EUR
View
A
Retailer 3
-
€4,990 EUR
View
A
Retailer 4
-
€5,140 EUR
View
B+
Retailer 5
-
€5,153 EUR
View
Final sale: no returns
A
Retailer 6
-
€5,256 EUR
View
B+
Retailer 7
-
€5,430 EUR
View
Most Expensive
B+
Blue Nile
29519225 · Nov 5
€5,861 EUR
$6,578 USD
View
7 more retailers have this diamond
Prices start from €4,276 EURSave up to €1,585 EUR

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
€4,276 EUR