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Round|Natural|GIA

4.25ct I VS1 Round Natural Diamond

ID • I/VS1 • GIA 1246024685

Certificate GIA 1246024685

Diamond specifications and retailer prices

From $100,632 AUD
£55,660 GBP
As of October 30, 2026
Save $16,617 AUD (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $117,249 AUD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 4.25ct natural round diamond

This 4.25ct natural round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1246024685. Listed at 3 retailers as of October 29, 2026, with prices from $100,632 to $117,249, a $16,617 spread on the same certified stone. Blue Nile lists it at $117,249. 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

4.25
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1246024685
Dimensions10.38 × 10.32 × 6.39 mm
L/W Ratio1.01
Top View
10.38 mm10.32 mm4.25 ctI / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1246024685
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.8%

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: $117,249 AUD|Low: $100,327 AUD|High: $120,758 AUD|Avg: $110,632 AUD|-2.9%
Blue Nile
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$100,632 AUD
Retailer 2$106,723 AUD
Blue Nile$117,249 AUD

20 data points across 3 retailers

3 retailers$100,632 AUD to $117,249 AUD

A
Cheapest Retailer
-
$100,632 AUD
£55,660 GBP
B+
Retailer 2
-
$106,723 AUD
$74,967 USD
View
Most Expensive
B+
Blue Nile
30036205 · Oct 29
$117,249 AUD
$82,361 USD
View
2 more retailers have this diamond
Prices start from $100,632 AUDSave up to $16,617 AUD

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
4.25ct Round
$100,632 AUD