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Round|Natural|GIA

2.53ct I SI2 Round Natural Diamond

ID • I/SI2 • GIA 17

Certificate GIA 17

Diamond specifications and retailer prices

From $16,813 USD
As of October 30, 2026
Save $3,756 USD (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $20,569 USD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 2.53ct natural round diamond

This 2.53ct natural round sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 3 retailers as of October 30, 2026, with prices from $16,813 to $20,569, a $3,756 spread on the same certified stone. Blue Nile lists it at $20,569. 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

2.53
Carat
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 17
Dimensions8.69 × 8.75 × 5.41 mm
L/W Ratio1.01
Top View
8.69 mm8.75 mm2.53 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 17
Side View
Table 56.0%CrownGirdle: THN-MEDPavilionCulet: 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: Oct 30
Current: $20,569 USD|Low: $16,813 USD|High: $20,569 USD|Avg: $18,023 USD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2$16,813 USD
Retailer 3$17,960 USD
Blue Nile$20,569 USD

2 data points across 3 retailers

3 retailers$16,813 USD to $20,569 USD

A
Cheapest Retailer
-
$16,813 USD
A
Retailer 2
-
$17,960 USD
View
Most Expensive
B+
Blue Nile
30156902 · Oct 31
$20,569 USD
View
2 more retailers have this diamond
Prices start from $16,813 USDSave up to $3,756 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
2.53ct Round
$16,813 USD