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Round|Natural|GIA

2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2547204671

Certificate GIA 2547204671

Diamond specifications and retailer prices

From €20,325 EUR
HK$177,400 HKD
As of November 1, 2026
Save €16,026 EUR (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €36,351 EUR at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547204671. Listed at 18 retailers as of November 1, 2026, with prices from €20,325 to €36,351, a €16,026 spread on the same certified stone. MOH London lists it at €36,351. 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2547204671
Dimensions8.67 × 8.63 × 5.37 mm
L/W Ratio1.00
Top View
8.67 mm8.63 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547204671
Side View
Table 60.0%Crown 33.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.1%

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: Nov 1
Current: €36,351 EUR|Low: €20,325 EUR|High: €36,789 EUR|Avg: €26,050 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9€20,325 EUR
Retailer 3€23,276 EUR
Retailer 2€23,290 EUR
Retailer 6€23,456 EUR
Retailer 8€24,245 EUR
Retailer 7€24,440 EUR
Retailer 10€25,216 EUR
Retailer 11€26,185 EUR
Retailer 5€28,242 EUR
Retailer 4€32,185 EUR
MOH London€36,351 EUR

42 data points across 11 retailers

18 retailers€20,325 EUR to €36,351 EUR

A
Cheapest Retailer
-
€20,325 EUR
HK$177,400 HKD
A
Retailer 2
-
€21,191 EUR
$23,675 USD
View
B+
Retailer 3
-
€22,655 EUR
$25,310 USD
View
B+
Retailer 4
-
€23,276 EUR
$26,004 USD
View
B+
Retailer 5
-
€23,290 EUR
£20,488 GBP
View
Retailer 6
-
€23,456 EUR
A$40,316 AUD
View
Price last confirmed 28 days ago
B+
Retailer 7
-
€23,829 EUR
$26,622 USD
View
B+
Retailer 8
-
€24,245 EUR
$27,087 USD
View
B+
Retailer 9
-
€24,440 EUR
$27,304 USD
View
B+
Retailer 10
-
€24,880 EUR
$27,796 USD
View
B+
Retailer 11
-
€25,134 EUR
$28,080 USD
View
B+
Retailer 12
-
€25,134 EUR
$28,080 USD
View
B+
Retailer 13
-
€25,216 EUR
$28,171 USD
View
B+
Retailer 14
-
€25,967 EUR
$29,010 USD
View
B+
Retailer 15
-
€26,185 EUR
$29,254 USD
View
B
Retailer 16
-
€28,242 EUR
View
B
Retailer 17
-
€32,185 EUR
ZAR 580,895 ZAR
View
Most Expensive
B
MOH London
B5DB54B5F · Nov 1
€36,351 EUR
£31,978 GBP
View
17 more retailers have this diamond
Prices start from €20,325 EURSave up to €16,026 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
€20,325 EUR