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Round|Natural|GIA

2.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6555357101

Certificate GIA 6555357101

Diamond specifications and retailer prices

From €18,378 EUR
$20,455 USD
As of October 27, 2026
Save €13,058 EUR (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €31,436 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555357101. Listed at 21 retailers as of October 27, 2026, with prices from €18,378 to €31,436, a €13,058 spread on the same certified stone. MOH London lists it at €31,436. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555357101
Dimensions8.72 × 8.80 × 5.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
8.72 mm8.80 mm2.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555357101
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: €31,436 EUR|Low: €15,733 EUR|High: €31,436 EUR|Avg: €20,652 EUR|+10.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 9€15,733 EUR
Retailer 17€18,378 EUR
Retailer 6€18,405 EUR
Retailer 3€18,549 EUR
Retailer 10€19,179 EUR
Retailer 7€19,188 EUR
Retailer 14€19,322 EUR
Retailer 2€20,124 EUR
Retailer 4€20,476 EUR
Retailer 11€20,610 EUR
Retailer 13€21,397 EUR
Retailer 8€21,545 EUR
Retailer 15€21,545 EUR
Retailer 5€22,264 EUR
Retailer 12€24,000 EUR
Retailer 16€24,088 EUR
MOH London€31,436 EUR

29 data points across 17 retailers

21 retailers€18,378 EUR to €31,436 EUR

A
Retailer 1
-
€15,733 EUR
HK$136,800 HKD
Price last confirmed 21 days ago
A
Retailer 2
-
€18,378 EUR
$20,455 USD
View
A
Retailer 3
-
€18,405 EUR
$20,485 USD
View
A
Retailer 4
-
€18,549 EUR
$20,645 USD
View
A
Retailer 5
-
€19,179 EUR
₹2,032,942 INR
View
A
Retailer 6
-
€19,188 EUR
$21,356 USD
View
Final sale: no returns
A
Retailer 7
-
€19,322 EUR
$21,505 USD
View
A
Retailer 8
-
€20,124 EUR
£17,636 GBP
View
A
Retailer 9
-
€20,476 EUR
$22,789 USD
View
A
Retailer 10
-
€20,610 EUR
$22,939 USD
View
A
Retailer 11
-
€21,174 EUR
$23,567 USD
View
Price last confirmed 30 days ago
A
Retailer 12
-
€21,397 EUR
$23,815 USD
View
A
Retailer 13
-
€21,545 EUR
$23,980 USD
View
A
Retailer 14
-
€21,545 EUR
$23,980 USD
View
A
Retailer 15
-
€21,846 EUR
$24,315 USD
View
Price last confirmed 28 days ago
A
Retailer 16
-
€22,264 EUR
$24,780 USD
View
A
Retailer 17
-
€22,686 EUR
$25,250 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
€24,000 EUR
View
B+
Retailer 19
-
€24,088 EUR
$26,810 USD
View
B+
Retailer 20
-
€25,881 EUR
$28,806 USD
View
Price last confirmed 31 days ago
Most Expensive
B
MOH London
1C18CEA27 · Oct 29
€31,436 EUR
£27,550 GBP
View
20 more retailers have this diamond
Prices start from €18,378 EURSave up to €13,058 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
€18,378 EUR