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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

GD • I/SI2 • GIA 6525240450

Certificate GIA 6525240450

Diamond specifications and retailer prices

From $3,925 SGD
$3,069 USD
As of November 2, 2026
Save $4,682 SGD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,607 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6525240450. Listed at 14 retailers as of October 27, 2026, with prices from $3,925 to $8,607, a $4,682 spread on the same certified stone. NZ Jewellers lists it at $8,607. 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

1.51
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6525240450
Dimensions7.34 × 5.63 × 4.06 mm
L/W Ratio1.30
Top View
7.34 mm5.63 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6525240450
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 72.1%

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: Nov 2
Current: $8,607 SGD|Low: $3,568 SGD|High: $8,607 SGD|Avg: $5,414 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$3,881 SGD
Retailer 7$3,925 SGD
Retailer 9$4,475 SGD
Retailer 10$4,475 SGD
Retailer 8$4,648 SGD
Retailer 2$4,819 SGD
Retailer 4$5,053 SGD
Retailer 3$5,443 SGD
Retailer 5$8,262 SGD
NZ Jewellers$8,607 SGD

41 data points across 10 retailers

14 retailers$3,925 SGD to $8,607 SGD

Retailer 1
-
$3,881 SGD
$3,035 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$3,925 SGD
$3,069 USD
View
Final sale: no returns
B+
Retailer 3
-
$3,974 SGD
$3,107 USD
View
Retailer 4
-
$4,475 SGD
$3,499 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$4,475 SGD
$3,499 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$4,648 SGD
$3,634 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,819 SGD
£2,967 GBP
View
B+
Retailer 8
-
$4,906 SGD
$3,836 USD
View
B+
Retailer 9
-
$5,053 SGD
£3,111 GBP
View
Retailer 10
-
$5,164 SGD
$4,038 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$5,443 SGD
€4,053 EUR
View
Retailer 12
-
$5,593 SGD
$4,373 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$8,262 SGD
£5,087 GBP
View
Most Expensive
B
NZ Jewellers
363558b4-d8ed-4fd6-9675-3dbf51520a58 · Oct 27
$8,607 SGD
$6,730 USD
View
13 more retailers have this diamond
Prices start from $3,925 SGDSave up to $4,682 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+
1.51ct Radiant
$3,925 SGD