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Round|Natural|GIA

1.09ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 1509146931

Certificate GIA 1509146931

Diamond specifications and retailer prices

From $3,119 SGD
As of November 5, 2026
Save $4,210 SGD (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $7,329 SGD at Allurez · As of November 5, 2026
View at Allurez

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1509146931. Listed at 2 retailers as of November 5, 2026, with prices from $3,119 to $7,329, a $4,210 spread on the same certified stone. Allurez lists it at $7,329. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1509146931
Dimensions6.55 × 6.58 × 4.10 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.55 mm6.58 mm1.09 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1509146931
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $7,329 SGD|Low: $3,103 SGD|High: $7,364 SGD|Avg: $5,234 SGD|-0.5%
Allurez
Retailer 2
November 5, 2026
Retailer 2$3,119 SGD
Allurez$7,329 SGD

6 data points across 2 retailers

2 retailers$3,119 SGD to $7,329 SGD

A
Cheapest Retailer
-
$3,119 SGD
Most Expensive
B
Allurez
2667171 · Nov 5
$7,329 SGD
$5,738 USD
View
1 more retailer has this diamond
Prices start from $3,119 SGDSave up to $4,210 SGD

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
1.09ct Round
$3,119 SGD