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Round|Natural|GIA

1.00ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1493733298

Certificate GIA 1493733298

Diamond specifications and retailer prices

From $2,534 SGD
As of November 6, 2026
Save $4,117 SGD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,886 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1493733298. Listed at 18 retailers as of November 5, 2026, with a 162% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1493733298
Dimensions6.41 × 6.32 × 3.98 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
6.41 mm6.32 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1493733298
Side View
Table 58.0%Crown 35°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 62.9%

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: $3,465 SGD|Low: $2,534 SGD|High: $6,164 SGD|Avg: $3,801 SGD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,534 SGD
Retailer 3$2,645 SGD
Retailer 4$2,948 SGD
Retailer 9$3,040 SGD
Retailer 6$3,059 SGD
Retailer 1$3,465 SGD
Retailer 2$4,081 SGD
Retailer 5$5,754 SGD
Retailer 8$6,139 SGD

36 data points across 9 retailers

18 retailers$2,534 SGD to $6,651 SGD

A
Cheapest Retailer
-
$2,534 SGD
A
Retailer 2
-
$2,645 SGD
View
A
Retailer 3
-
$2,948 SGD
View
A
Retailer 4
-
$3,040 SGD
View
Final sale: no returns
A
Retailer 5
-
$3,059 SGD
View
A
Retailer 6
-
$3,131 SGD
View
Retailer 7
-
$3,294 SGD
View
Price last confirmed 29 days ago
Retailer 8
-
$3,294 SGD
View
Price last confirmed 29 days ago
Retailer 9
-
$3,446 SGD
View
Price last confirmed 38 days ago
A
Retailer 10
-
$3,465 SGD
View
A
Retailer 11
-
$3,473 SGD
View
A
Retailer 12
-
$3,515 SGD
View
Retailer 13
-
$3,801 SGD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$4,081 SGD
View
B+
Retailer 15
-
$5,754 SGD
View
Retailer 16
-
$6,139 SGD
View
Price last confirmed 9 days ago
B
Retailer 17
-
$6,651 SGD
View
Most Expensive
NZ Jewellers
3a32d4ef-c24c-44f2-b59e-c247df22ecf6 · Sep 28
$6,886 SGD
$5,391 USD
View
Price last confirmed 39 days ago
17 more retailers have this diamond
Prices start from $2,534 SGDSave up to $4,117 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
$2,534 SGD