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Radiant|Natural|GIA

1.00ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1515499834

Certificate GIA 1515499834

Diamond specifications and retailer prices

From $2,471 SGD
$1,933 USD
As of October 31, 2026
Save $3,010 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,540 SGD at NZ Jewellers · As of September 30, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1515499834. Listed at 19 retailers as of October 31, 2026, with a 122% 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1515499834
Dimensions6.69 × 4.99 × 3.44 mm
L/W Ratio1.34
Culet sizeNone
Top View
6.69 mm4.99 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515499834
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: Oct 31
Current: $3,052 SGD|Low: $2,471 SGD|High: $5,546 SGD|Avg: $3,450 SGD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$2,471 SGD
Retailer 10$2,616 SGD
Retailer 6$2,669 SGD
Retailer 3$2,834 SGD
Retailer 1$3,052 SGD
Retailer 9$3,214 SGD
Retailer 5$3,315 SGD
Retailer 7$3,845 SGD
Retailer 11$3,849 SGD
Retailer 8$3,907 SGD
Retailer 4$5,481 SGD

41 data points across 11 retailers

19 retailers$2,471 SGD to $5,481 SGD

A
Cheapest Retailer
-
$2,471 SGD
$1,933 USD
B+
Retailer 2
-
$2,559 SGD
$2,002 USD
View
B+
Retailer 3
-
$2,616 SGD
$2,046 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,733 SGD
$2,138 USD
View
Retailer 5
-
$2,834 SGD
$2,217 USD
View
Price last confirmed 34 days ago
B+
Retailer 6
-
$2,902 SGD
$2,270 USD
View
Retailer 7
-
$2,965 SGD
$2,319 USD
View
Price last confirmed 32 days ago
B+
Retailer 8
-
$3,052 SGD
£1,880 GBP
View
B
Retailer 9
-
$3,214 SGD
$2,514 USD
View
Retailer 10
-
$3,270 SGD
$2,558 USD
View
Price last confirmed 34 days ago
B
Retailer 11
-
$3,273 SGD
$2,560 USD
View
B
Retailer 12
-
$3,273 SGD
$2,560 USD
View
B+
Retailer 13
-
$3,315 SGD
£2,042 GBP
View
B
Retailer 14
-
$3,388 SGD
$2,650 USD
View
B
Retailer 15
-
$3,845 SGD
ZAR 48,592 ZAR
View
Retailer 16
-
$3,849 SGD
A$4,633 AUD
View
Price last confirmed 32 days ago
B
Retailer 17
-
$3,907 SGD
€2,911 EUR
View
B
Retailer 18
-
$5,481 SGD
£3,376 GBP
View
Most Expensive
NZ Jewellers
18ed3865-72f4-495f-ba79-541c5e595169 · Sep 30
$6,540 SGD
$5,116 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from $2,471 SGDSave up to $3,010 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
$2,471 SGD