Round|Natural|IGI

2.51ct F SI2 Round Natural Diamond

EX • F/SI2 • IGI 819642294

Shape and cutting style on the report: Round brilliant

Certificate IGI 819642294

Diamond specifications and retailer prices

From $10,400 USD
SGD 14,054 SGD
As of October 31, 2026
Save $4,580 USD (31%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $14,980 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 IGI 819642294. Listed at 7 retailers as of October 26, 2026, with prices from $10,400 to $14,980, a $4,580 spread on the same certified stone. Wholesale Diamonds Direct lists it at $14,980. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.9°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 819642294
Dimensions8.77 × 8.82 × 5.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.77 mm8.82 mm2.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819642294
Side View
Table 56.0%Crown 31.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.2%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $14,138 USD|Low: $10,400 USD|High: $15,823 USD|Avg: $13,454 USD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
October 28, 2026
Retailer 4$10,400 USD
Retailer 3$11,995 USD
Retailer 2$12,284 USD
Retailer 5$12,410 USD
Retailer 6$14,074 USD
Retailer 1$14,138 USD
Wholesale Diamonds Direct$14,980 USD

31 data points across 7 retailers

7 retailers$10,400 USD to $14,980 USD

A
Cheapest Retailer
-
$10,400 USD
SGD 14,054 SGD
Retailer 2
-
$11,995 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$12,284 USD
View
A
Retailer 4
-
$12,410 USD
View
A
Retailer 5
-
$14,074 USD
View
A
Retailer 6
-
$14,138 USD
€13,465 EUR
View
Most Expensive
A
Wholesale Diamonds Direct
584618206 · Oct 26
$14,980 USD
View
6 more retailers have this diamond
Prices start from $10,400 USDSave up to $4,580 USD

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
$10,400 USD