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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 €18,309 EUR
$20,455 USD
As of October 30, 2026
Save €13,009 EUR (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €31,318 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 29, 2026, with prices from €18,309 to €31,318, a €13,009 spread on the same certified stone. MOH London lists it at €31,318. 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
Color
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 30
Current: €31,318 EUR|Low: €15,673 EUR|High: €31,318 EUR|Avg: €20,573 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
Retailer 18
October 30, 2026
Retailer 10€15,673 EUR
Retailer 18€18,309 EUR
Retailer 6€18,336 EUR
Retailer 3€18,480 EUR
Retailer 2€19,092 EUR
Retailer 7€19,116 EUR
Retailer 15€19,249 EUR
Retailer 9€20,090 EUR
Retailer 11€20,109 EUR
Retailer 4€20,398 EUR
Retailer 13€20,532 EUR
Retailer 14€21,316 EUR
Retailer 8€21,464 EUR
Retailer 16€21,464 EUR
Retailer 5€22,180 EUR
Retailer 17€23,998 EUR
Retailer 12€24,103 EUR
MOH London€31,318 EUR

28 data points across 18 retailers

21 retailers€18,309 EUR to €31,318 EUR

Retailer 1
-
€15,673 EUR
HK$136,800 HKD
Price last confirmed 23 days ago
A
Retailer 2
-
€18,309 EUR
$20,455 USD
View
A
Retailer 3
-
€18,336 EUR
$20,485 USD
View
A
Retailer 4
-
€18,480 EUR
$20,645 USD
View
A
Retailer 5
-
€19,092 EUR
₹2,031,397 INR
View
A
Retailer 6
-
€19,116 EUR
$21,356 USD
View
Final sale: no returns
A
Retailer 7
-
€19,249 EUR
$21,505 USD
View
A
Retailer 8
-
€20,109 EUR
£17,690 GBP
View
A
Retailer 9
-
€20,398 EUR
$22,789 USD
View
A
Retailer 10
-
€20,532 EUR
$22,939 USD
View
Retailer 11
-
€21,095 EUR
$23,567 USD
View
Price last confirmed 32 days ago
A
Retailer 12
-
€21,316 EUR
$23,815 USD
View
A
Retailer 13
-
€21,464 EUR
$23,980 USD
View
A
Retailer 14
-
€21,464 EUR
$23,980 USD
View
Retailer 15
-
€21,764 EUR
$24,315 USD
View
Price last confirmed 30 days ago
A
Retailer 16
-
€22,180 EUR
$24,780 USD
View
Retailer 17
-
€22,601 EUR
$25,250 USD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
€23,998 EUR
$26,810 USD
View
B+
Retailer 19
-
€24,103 EUR
View
Retailer 20
-
€25,784 EUR
$28,806 USD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
1C18CEA27 · Oct 29
€31,318 EUR
£27,550 GBP
View
20 more retailers have this diamond
Prices start from €18,309 EURSave up to €13,009 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
€18,309 EUR