Radiant|Natural|GIA

1.56ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 6445505545

Certificate GIA 6445505545

Diamond specifications and retailer prices

From $5,110 SGD
As of November 5, 2026
Save $5,161 SGD (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,815 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.56ct natural radiant diamond

This 1.56ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6445505545. Listed at 22 retailers as of November 4, 2026, with a 101% 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

1.56
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6445505545
Dimensions7.56 × 5.89 × 4.18 mm
L/W Ratio1.28
Top View
7.56 mm5.89 mm1.56 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6445505545
Side View
Table 74.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 71.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,367 SGD|Low: $5,024 SGD|High: $10,423 SGD|Avg: $6,713 SGD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$5,024 SGD
Retailer 7$5,344 SGD
Retailer 10$5,408 SGD
Retailer 8$5,521 SGD
Retailer 3$6,044 SGD
Retailer 1$6,367 SGD
Retailer 2$6,518 SGD
Retailer 4$7,206 SGD
Retailer 5$7,890 SGD
Retailer 6$10,271 SGD

36 data points across 10 retailers

22 retailers$5,110 SGD to $10,271 SGD

Retailer 1
-
$5,024 SGD
Price last confirmed 17 days ago
B+
Retailer 2
-
$5,110 SGD
View
B+
Retailer 3
-
$5,344 SGD
View
B+
Retailer 4
-
$5,408 SGD
View
Final sale: no returns
B+
Retailer 5
-
$5,521 SGD
View
B+
Retailer 6
-
$5,543 SGD
View
B+
Retailer 7
-
$5,702 SGD
View
B+
Retailer 8
-
$5,818 SGD
View
Retailer 9
-
$5,858 SGD
View
Price last confirmed 38 days ago
Retailer 10
-
$5,858 SGD
View
Price last confirmed 37 days ago
B+
Retailer 11
-
$6,044 SGD
View
B+
Retailer 12
-
$6,367 SGD
View
Retailer 13
-
$6,518 SGD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$6,575 SGD
View
B+
Retailer 15
-
$6,575 SGD
View
Retailer 16
-
$6,760 SGD
View
Price last confirmed 39 days ago
B+
Retailer 17
-
$6,805 SGD
View
Retailer 18
-
$7,140 SGD
View
Price last confirmed 15 days ago
B+
Retailer 19
-
$7,206 SGD
View
B+
Retailer 20
-
$7,890 SGD
View
B
Retailer 21
-
$10,271 SGD
View
Most Expensive
NZ Jewellers
839ae32f-3b2c-486c-9f25-6c59ac598efa · Sep 30
$10,815 SGD
$8,439 USD
View
Price last confirmed 37 days ago
21 more retailers have this diamond
Prices start from $5,110 SGDSave up to $5,161 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+
1.56ct Radiant
$5,110 SGD