VS1 Clarity

Live pricing and availability for VS1 clarity diamonds across natural and lab-grown origins.

Total listings
6,478,275
Natural median (JPY)
¥350,185/ct
Lab-grown median (JPY)
¥75,969/ct

What VS1 Clarity Means for Buyers

VS1 is a point on the GIA clarity scale, which grades how many and how visible the internal inclusions and surface blemishes are at 10× magnification. The top of the scale is FL (flawless); the bottom is I3. The key word for buyers is 'eye-clean'. Whether you can see any inclusions without magnification. And that threshold is closer to the middle of the scale than most buyers assume.

Right now we're tracking 6,478,275 active VS1 clarity listings across our retailer network. The typical natural VS1 diamond trades around ¥350,185/ct while the lab-grown equivalent sits at ¥75,969/ct. Roughly a 78% gap that reflects the broader natural-vs-lab pricing gap, not a quality difference at this grade.

At -1.3% above the neighboring VS2 grade, the premium for VS1 is subtle. Barely enough to move the needle on total budget. Unless you specifically want the paper grade, VS2 is interchangeable for most buyers and leaves money on the table for cut or carat weight.

VS1 shows up most often in ROUND. About 1,761,780 listings at this moment. Followed by OVAL. Most of the supply clusters around the 3.0ct+ carat range, where demand is strongest and retailers keep the deepest inventory. If you're shopping an unusual shape or carat, expect thinner selection.

VS2 is typically eye-clean for almost any shape up to around 2 carats. SI1 is often eye-clean too, especially in brilliant-cut shapes like round and oval that hide inclusions well. But always check the plot or a high-resolution photo before buying SI-grade. Step-cut shapes (emerald, asscher) show inclusions more. Lean toward VS1 for those. Paying for VVS or FL is almost entirely about paper value, not what you'll see.

Breakdown by Shape

ShapeOriginListingsMedian (JPY)
ROUNDlab grown1,761,780¥77,846/ct
OVALlab grown870,105¥74,238/ct
ROUNDnatural599,576¥337,568/ct
EMERALDlab grown452,481¥73,961/ct
PEARlab grown437,837¥78,587/ct
RADIANTlab grown414,987¥70,208/ct
MARQUISElab grown290,794¥71,542/ct
CUSHIONlab grown280,429¥74,991/ct
PRINCESSlab grown262,748¥77,702/ct
EMERALDnatural174,134¥354,107/ct
OVALnatural173,413¥395,736/ct
PEARnatural151,679¥332,313/ct
HEARTlab grown141,744¥78,122/ct
ASSCHERlab grown97,236¥85,582/ct
HEARTnatural83,634¥341,571/ct
CUSHIONnatural82,059¥386,969/ct
PRINCESSnatural68,134¥353,134/ct
RADIANTnatural35,121¥442,339/ct
MARQUISEnatural35,004¥333,423/ct
ASSCHERnatural34,352¥392,912/ct
OTHERlab grown19,477¥97,597/ct
TRILLIONlab grown5,207¥98,616/ct
OTHERnatural3,843¥410,803/ct
BAGUETTElab grown2,377¥67,085/ct
BAGUETTEnatural379¥463,426/ct
SQ_RADIANTlab grown368¥63,036/ct
TRILLIONnatural168¥560,333/ct
ROUNDunknown89¥213,749/ct
EMERALDunknown28¥312,109/ct
OVALunknown20¥124,618/ct
RADIANTunknown12¥204,276/ct
SQ_RADIANTnatural9¥192,859/ct
PRINCESSunknown5¥183,010/ct

Breakdown by Carat

CaratOriginListingsMedian (JPY)
0.5-0.99ctnatural563,325¥300,439/ct
0.5-0.99ctlab grown482,838¥87,094/ct
0.5-0.99ctunknown22¥352,925/ct
1.0-1.49ctnatural282,645¥550,075/ct
1.0-1.49ctlab grown1,002,598¥73,292/ct
1.0-1.49ctunknown30¥166,293/ct
1.5-1.99ctnatural119,959¥861,940/ct
1.5-1.99ctlab grown1,014,493¥72,310/ct
1.5-1.99ctunknown28¥211,066/ct
2.0-2.99ctnatural86,366¥1,233,955/ct
2.0-2.99ctlab grown1,172,025¥77,741/ct
2.0-2.99ctunknown47¥213,749/ct
3.0ct+natural47,001¥2,052,177/ct
3.0ct+lab grown1,172,825¥67,346/ct
3.0ct+unknown18¥102,289/ct
under-0.5ctnatural342,267¥257,284/ct
under-0.5ctlab grown192,872¥124,116/ct
under-0.5ctunknown16¥223,729/ct
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