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Round|Natural|GIA

2.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6552970879

Certificate GIA 6552970879

Diamond specifications and retailer prices

From €13,702 EUR
SGD 20,768 SGD
As of October 28, 2026
Save €3,085 EUR (18%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €21,199 EUR at Helzberg Diamonds · As of October 27, 2026
View at Helzberg Diamonds

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552970879. Listed at 10 retailers as of October 28, 2026, with a relatively tight 23% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

2.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552970879
Dimensions8.64 × 8.68 × 5.39 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.64 mm8.68 mm2.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6552970879
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: €21,199 EUR|Low: €13,702 EUR|High: €22,978 EUR|Avg: €16,965 EUR|-7.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 3€13,702 EUR
Retailer 6€14,388 EUR
Retailer 7€14,564 EUR
Retailer 2€14,894 EUR
Retailer 5€15,012 EUR
Retailer 4€16,787 EUR
Retailer 10€16,936 EUR
Retailer 8€17,064 EUR
Retailer 9€17,825 EUR
Helzberg Diamonds€21,199 EUR

38 data points across 10 retailers

10 retailers€13,702 EUR to €16,787 EUR

A
Cheapest Retailer
-
€13,702 EUR
SGD 20,768 SGD
Retailer 2
-
€14,388 EUR
£12,707 GBP
View
Price last confirmed 7 days ago
Retailer 3
-
€14,564 EUR
$16,335 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
€14,894 EUR
SGD 22,575 SGD
View
Retailer 5
-
€15,012 EUR
$16,837 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
€16,787 EUR
View
Retailer 7
-
€16,936 EUR
$18,995 USD
View
Price last confirmed 7 days ago
Retailer 8
-
€17,064 EUR
$19,139 USD
View
Price last confirmed 7 days ago
Retailer 9
-
€17,825 EUR
$19,993 USD
View
Price last confirmed 7 days ago
Most Expensive
Helzberg Diamonds
XZRMLLIPNGONP · Oct 27
€21,199 EUR
$23,777 USD
View
Price last confirmed 7 days ago
9 more retailers have this diamond
Prices start from €13,702 EURSave up to €3,085 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
2.51ct Round
€13,702 EUR