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Round|Natural|GIA

1.00ct K I1 Round Natural Diamond

VG • K/I1 • GIA 2437688605

Certificate GIA 2437688605

Diamond specifications and retailer prices

From $1,530 SGD
As of November 4, 2026
Save $761 SGD (33%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,027 SGD at NZ Jewellers · As of October 17, 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 I1 clarity (included), with a very-good cut grade and certified by GIA 2437688605. Listed at 14 retailers as of November 4, 2026, with a 50% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2437688605
Dimensions6.37 × 6.39 × 3.98 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cavity, Feather, Twinning Wisp, Indented Natural, Natural
Top View
6.37 mm6.39 mm1.00 ctK / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2437688605
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,027 SGD|Low: $967 SGD|High: $4,027 SGD|Avg: $1,838 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9$967 SGD
Retailer 8$1,530 SGD
Retailer 3$1,652 SGD
Retailer 4$1,652 SGD
Retailer 5$1,712 SGD
Retailer 7$1,717 SGD
Retailer 6$1,904 SGD
Retailer 2$2,291 SGD
NZ Jewellers$4,027 SGD

18 data points across 9 retailers

14 retailers$1,530 SGD to $2,291 SGD

B+
Cheapest Retailer
-
$1,530 SGD
Retailer 2
-
$1,635 SGD
View
Price last confirmed 36 days ago
Retailer 3
-
$1,652 SGD
View
Price last confirmed 8 days ago
Retailer 4
-
$1,652 SGD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$1,652 SGD
View
Retailer 6
-
$1,699 SGD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$1,712 SGD
View
B+
Retailer 8
-
$1,714 SGD
View
Retailer 9
-
$1,717 SGD
View
Price last confirmed 16 days ago
Retailer 10
-
$1,887 SGD
View
Price last confirmed 38 days ago
Retailer 11
-
$1,904 SGD
View
Price last confirmed 19 days ago
B
Retailer 12
-
$2,291 SGD
View
Retailer 13
-
$3,989 SGD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
cf64e8b4-1946-477a-8f18-da863d3aabb4 · Oct 17
$4,027 SGD
$3,153 USD
View
Price last confirmed 19 days ago
13 more retailers have this diamond
Prices start from $1,530 SGDSave up to $761 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.

B+
1.00ct Round
$1,530 SGD