Round|Natural|IGI

25.09ct I VS1 Round Natural Diamond

EX • I/VS1

Diamond specifications and retailer prices

This diamond has been sold
Last seen: Jul 30, 2026 at $1,714,905 SGD
$1,714,905 SGDlast known price
$1,341,446 USD

About this 25.09ct natural round diamond

This 25.09ct natural round sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI. 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

25.09
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
Dimensions18.49 × 18.65 × 11.62 mm
L/W Ratio1.01
Top View
18.49 mm18.65 mm25.09 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: Med. - ThickPavilionCulet: NoneDepth 62.5%

Caratlytics Score

Price History

Last verified: Jun 7
Current: $1,780,862 SGD|Low: $1,055,791 SGD|High: $1,780,862 SGD|Avg: $1,491,763 SGD|+8.0%
Aurelinne
B2C Jewels
Calavera New York
Carbon Sparkle
Moon Ocean
NZ Jewellers
Rare Carat
August 26, 2026
Moon Ocean$1,314,959 SGD
B2C Jewels$1,368,272 SGD
Rare Carat$1,426,461 SGD
NZ Jewellers$1,493,868 SGD
Calavera New York$1,582,989 SGD
Carbon Sparkle$1,714,905 SGD
Aurelinne$1,780,862 SGD

60 data points across 7 retailers

Historical Listings

Rare Carat
RT684B-1A_773616887 · Jun 7
$1,426,461 SGD
$1,115,817 USD
View
NZ Jewellers
91a8c153-2997-443a-820d-503b9572d649 · Jul 28
$1,493,868 SGD
$1,168,545 USD
View
Calavera New York
91a8c153-2997-443a-820d-503b9572d649 · Jul 23
$1,582,989 SGD
$1,238,258 USD
View
Carbon Sparkle
91a8c153-2997-443a-820d-503b9572d649 · Jul 30
$1,714,905 SGD
$1,341,446 USD
View
Aurelinne
91a8c153-2997-443a-820d-503b9572d649 · Jul 22
$1,780,862 SGD
$1,393,040 USD
View

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