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Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6505210996

Certificate GIA 6505210996

Diamond specifications and retailer prices

From $1,838 SGD
As of November 6, 2026
Save $4,377 SGD (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,215 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505210996. Listed at 18 retailers as of November 5, 2026, with prices from $1,838 to $6,215, a $4,377 spread on the same certified stone. NZ Jewellers lists it at $6,215. 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

1.00
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6505210996
Dimensions6.42 × 6.39 × 3.99 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.42 mm6.39 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505210996
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,838 SGD|Low: $1,838 SGD|High: $4,488 SGD|Avg: $2,622 SGD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$1,838 SGD
Retailer 7$1,864 SGD
Retailer 8$2,303 SGD
Retailer 9$2,376 SGD
Retailer 6$2,449 SGD
Retailer 2$2,472 SGD
Retailer 3$2,751 SGD
Retailer 5$3,138 SGD
Retailer 4$4,453 SGD

31 data points across 9 retailers

18 retailers$1,838 SGD to $6,215 SGD

A
Cheapest Retailer
-
$1,838 SGD
A
Retailer 2
-
$1,864 SGD
View
B+
Retailer 3
-
$2,235 SGD
View
B+
Retailer 4
-
$2,303 SGD
View
B+
Retailer 5
-
$2,376 SGD
View
B+
Retailer 6
-
$2,449 SGD
View
B+
Retailer 7
-
$2,472 SGD
View
Retailer 8
-
$2,548 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,548 SGD
View
B+
Retailer 10
-
$2,587 SGD
View
B+
Retailer 11
-
$2,666 SGD
View
B+
Retailer 12
-
$2,724 SGD
View
B+
Retailer 13
-
$2,751 SGD
View
B
Retailer 14
-
$2,940 SGD
View
B
Retailer 15
-
$3,138 SGD
View
B
Retailer 16
-
$3,626 SGD
View
B
Retailer 17
-
$4,453 SGD
View
Most Expensive
C
NZ Jewellers
98a302cd-3331-4711-b280-640809bb727d · Nov 5
$6,215 SGD
$4,866 USD
View
17 more retailers have this diamond
Prices start from $1,838 SGDSave up to $4,377 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
1.00ct Round
$1,838 SGD