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Radiant|Natural|GIA

1.00ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 6555313081

Certificate GIA 6555313081

Diamond specifications and retailer prices

From $1,871 SGD
As of November 6, 2026
Save $1,675 SGD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,891 SGD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555313081. Listed at 11 retailers as of November 2, 2026, with a 90% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555313081
Dimensions6.71 × 4.99 × 3.33 mm
L/W Ratio1.34
Culet sizeNone
Key to symbols
Feather, Indented Natural, Cavity, Crystal, Needle, Natural
Top View
6.71 mm4.99 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555313081
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.7%

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: $1,990 SGD|Low: $1,397 SGD|High: $3,565 SGD|Avg: $2,233 SGD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$1,676 SGD
Retailer 10$1,699 SGD
Retailer 11$1,871 SGD
Retailer 1$1,990 SGD
Retailer 2$2,113 SGD
Retailer 6$2,179 SGD
Retailer 7$2,179 SGD
Retailer 8$2,243 SGD
Retailer 3$2,367 SGD
Retailer 4$2,749 SGD
Retailer 5$3,546 SGD

31 data points across 11 retailers

11 retailers$1,871 SGD to $3,546 SGD

Retailer 1
-
$1,816 SGD
Price last confirmed 34 days ago
A
Retailer 2
-
$1,871 SGD
View
Retailer 3
-
$1,901 SGD
View
Price last confirmed 38 days ago
A
Retailer 4
-
$1,990 SGD
View
Retailer 5
-
$2,095 SGD
View
Price last confirmed 34 days ago
A
Retailer 6
-
$2,179 SGD
View
A
Retailer 7
-
$2,179 SGD
View
A
Retailer 8
-
$2,243 SGD
View
B+
Retailer 9
-
$2,749 SGD
View
B
Retailer 10
-
$3,546 SGD
View
Most Expensive
NZ Jewellers
5c194249-dc4c-4bee-90bd-39920ba8d63a · Oct 3
$4,891 SGD
$3,816 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from $1,871 SGDSave up to $1,675 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 Radiant
$1,871 SGD