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Round|Natural|GIA

2.51ct I I1 Round Natural Diamond

EX • I/I1 • GIA 5503501521

Certificate GIA 5503501521

Diamond specifications and retailer prices

From $20,320 USD
As of November 2, 2026
Save $680 USD (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $21,000 USD at Jared · As of November 2, 2026
View at Jared

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 I1 clarity (included), with a top-tier cut grade and certified by GIA 5503501521. Listed at 3 retailers as of November 2, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
I
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5503501521
Dimensions8.62 × 8.66 mm
L/W Ratio1.00
Top View
8.62 mm8.66 mm2.51 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5503501521
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $21,000 USD|Low: $20,320 USD|High: $21,010 USD|Avg: $20,581 USD|-0.0%
Jared
Retailer 2
Retailer 3
June 23, 2026
Retailer 2$20,320 USD
Retailer 3$20,320 USD
Jared$21,000 USD

3 data points across 3 retailers

3 retailers$20,320 USD to $21,000 USD

B
Cheapest Retailer
-
$20,320 USD
B
Retailer 2
-
$20,320 USD
View
Most Expensive
B
Jared
155874781 · Nov 2
$21,000 USD
View
2 more retailers have this diamond
Prices start from $20,320 USDSave up to $680 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.

B
2.51ct Round
$20,320 USD