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Round|Natural|GIA

2.51ct I VS1 Round Natural Diamond

VG • I/VS1 • GIA 1559787256

Certificate GIA 1559787256

Diamond specifications and retailer prices

From €12,523 EUR
SGD 18,907 SGD
As of November 1, 2026
Save €9,925 EUR (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €22,448 EUR at With Clarity · As of October 30, 2026
View at With Clarity

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by GIA 1559787256. Listed at 12 retailers as of October 30, 2026, with prices from €12,523 to €22,448, a €9,925 spread on the same certified stone. With Clarity lists it at €22,448. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
I
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559787256
Dimensions8.37 × 5.42 × 5.42 mm
L/W Ratio1.54
Culet sizeNone
Top View
8.37 mm5.42 mm2.51 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1559787256
Side View
Table 57.0%Crown 38.5°Girdle: THN-THKPavilion 39.8°Culet: NoneDepth 64.5%

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: €15,953 EUR|Low: €12,523 EUR|High: €23,370 EUR|Avg: €16,156 EUR|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 1, 2026
Retailer 5€12,523 EUR
Retailer 7€12,925 EUR
Retailer 3€13,236 EUR
Retailer 6€13,721 EUR
Retailer 9€13,852 EUR
Retailer 8€14,578 EUR
Retailer 2€15,492 EUR
Retailer 1€15,953 EUR
Retailer 10€16,365 EUR
Retailer 4€18,464 EUR
With Clarity€22,448 EUR

38 data points across 11 retailers

12 retailers€12,523 EUR to €22,448 EUR

A
Cheapest Retailer
-
€12,523 EUR
SGD 18,907 SGD
A
Retailer 2
-
€12,925 EUR
$14,440 USD
View
A
Retailer 3
-
€13,236 EUR
£11,644 GBP
View
A
Retailer 4
-
€13,721 EUR
$15,329 USD
View
A
Retailer 5
-
€13,852 EUR
$15,476 USD
View
A
Retailer 6
-
€14,578 EUR
SGD 22,009 SGD
View
A
Retailer 7
-
€15,492 EUR
$17,308 USD
View
A
Retailer 8
-
€15,953 EUR
View
A
Retailer 9
-
€16,365 EUR
$18,283 USD
View
B+
Retailer 10
-
€17,265 EUR
$19,289 USD
View
A
Retailer 11
-
€18,464 EUR
$20,628 USD
View
Most Expensive
B+
With Clarity
1559787256 · Oct 30
€22,448 EUR
$25,079 USD
View
11 more retailers have this diamond
Prices start from €12,523 EURSave up to €9,925 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
€12,523 EUR