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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 5231437621

Certificate GIA 5231437621

Diamond specifications and retailer prices

From $3,517 SGD
$2,751 USD
As of October 30, 2026
Save $3,531 SGD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,342 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231437621. Listed at 19 retailers as of October 30, 2026, with a 100% 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231437621
Dimensions7.66 × 4.76 × 3.28 mm
L/W Ratio1.61
Top View
7.66 mm4.76 mm1.00 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231437621
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.0%

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: Oct 30
Current: $4,111 SGD|Low: $3,160 SGD|High: $7,132 SGD|Avg: $4,471 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 3$3,170 SGD
Retailer 8$3,741 SGD
Retailer 2$3,758 SGD
Retailer 10$3,889 SGD
Retailer 5$4,078 SGD
Retailer 1$4,111 SGD
Retailer 6$4,367 SGD
Retailer 11$4,394 SGD
Retailer 9$4,934 SGD
Retailer 7$5,180 SGD
Retailer 4$7,048 SGD

23 data points across 11 retailers

19 retailers$3,517 SGD to $7,048 SGD

Retailer 1
-
$3,170 SGD
₹236,168 INR
Price last confirmed 9 days ago
Retailer 2
-
$3,456 SGD
$2,703 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$3,517 SGD
$2,751 USD
View
B+
Retailer 4
-
$3,741 SGD
$2,926 USD
View
B+
Retailer 5
-
$3,758 SGD
$2,940 USD
View
B+
Retailer 6
-
$3,834 SGD
$2,999 USD
View
B+
Retailer 7
-
$3,889 SGD
$3,042 USD
View
Final sale: no returns
B+
Retailer 8
-
$4,078 SGD
$3,190 USD
View
B+
Retailer 9
-
$4,111 SGD
£2,532 GBP
View
Retailer 10
-
$4,214 SGD
$3,296 USD
View
Price last confirmed 37 days ago
B
Retailer 11
-
$4,367 SGD
£2,690 GBP
View
B
Retailer 12
-
$4,394 SGD
$3,437 USD
View
Retailer 13
-
$4,502 SGD
A$5,418 AUD
View
Price last confirmed 24 days ago
Retailer 14
-
$4,862 SGD
$3,803 USD
View
Price last confirmed 38 days ago
B
Retailer 15
-
$4,934 SGD
€3,676 EUR
View
B
Retailer 16
-
$5,180 SGD
ZAR 65,458 ZAR
View
Retailer 17
-
$5,477 SGD
$4,284 USD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$7,048 SGD
£4,341 GBP
View
Most Expensive
NZ Jewellers
b1466a4b-cd59-4f26-b574-ced26ac3ecdb · Sep 25
$7,342 SGD
$5,743 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $3,517 SGDSave up to $3,531 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 Radiant
$3,517 SGD