CaratHunter
Plans
Round|Natural|GIA

1.00ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 5556658545

Certificate GIA 5556658545

Diamond specifications and retailer prices

From $1,864 SGD
As of November 6, 2026
Save $2,410 SGD (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $6,089 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 5556658545. Listed at 26 retailers as of November 4, 2026, with a 129% 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5556658545
Dimensions6.21 × 4.03 × 4.03 mm
L/W Ratio1.54
Culet sizeNone
Top View
6.21 mm4.03 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556658545
Side View
Table 57.0%Crown 37.5°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 64.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $2,308 SGD|Low: $1,814 SGD|High: $4,426 SGD|Avg: $2,548 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 7$1,819 SGD
Retailer 3$1,864 SGD
Retailer 6$1,906 SGD
Retailer 4$2,019 SGD
Retailer 16$2,046 SGD
Retailer 2$2,105 SGD
Retailer 15$2,299 SGD
Retailer 1$2,308 SGD
Retailer 8$2,470 SGD
Retailer 5$2,593 SGD
Retailer 12$2,593 SGD
Retailer 9$2,640 SGD
Retailer 13$2,682 SGD
Retailer 14$2,980 SGD
Retailer 10$3,106 SGD
Retailer 11$4,274 SGD

27 data points across 16 retailers

26 retailers$1,864 SGD to $4,274 SGD

Retailer 1
-
$1,819 SGD
Price last confirmed 22 days ago
A
Retailer 2
-
$1,864 SGD
View
A
Retailer 3
-
$1,906 SGD
View
A
Retailer 4
-
$2,019 SGD
View
A
Retailer 5
-
$2,046 SGD
View
Final sale: no returns
A
Retailer 6
-
$2,105 SGD
View
A
Retailer 7
-
$2,299 SGD
View
A
Retailer 8
-
$2,308 SGD
View
Retailer 9
-
$2,396 SGD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$2,441 SGD
View
Retailer 11
-
$2,470 SGD
View
Price last confirmed 21 days ago
Retailer 12
-
$2,496 SGD
View
Price last confirmed 28 days ago
Retailer 13
-
$2,506 SGD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$2,593 SGD
View
A
Retailer 15
-
$2,593 SGD
View
B+
Retailer 16
-
$2,640 SGD
View
Retailer 17
-
$2,647 SGD
View
Price last confirmed 51 days ago
B+
Retailer 18
-
$2,682 SGD
View
Retailer 19
-
$2,764 SGD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
$2,980 SGD
View
Retailer 21
-
$3,054 SGD
View
Price last confirmed 53 days ago
B+
Retailer 22
-
$3,106 SGD
View
B
Retailer 23
-
$4,274 SGD
View
Retailer 24
-
$5,533 SGD
View
Price last confirmed 52 days ago
Retailer 25
-
$5,533 SGD
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
8b009770-1bb8-4274-86ca-3ce52310d4c6 · Sep 28
$6,089 SGD
$4,767 USD
View
Price last confirmed 39 days ago
25 more retailers have this diamond
Prices start from $1,864 SGDSave up to $2,410 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
$1,864 SGD