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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2436825305

Certificate GIA 2436825305

Diamond specifications and retailer prices

From $8,897 SGD
$6,957 USD
As of November 1, 2026
Save $9,926 SGD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,823 SGD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2436825305. Listed at 12 retailers as of October 30, 2026, with prices from $8,897 to $18,823, a $9,926 spread on the same certified stone. NZ Jewellers lists it at $18,823. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2436825305
Dimensions8.52 × 5.46 × 3.64 mm
L/W Ratio1.56
Top View
8.52 mm5.46 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436825305
Side View
Table 71.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 66.7%

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 1
Current: $18,823 SGD|Low: $8,626 SGD|High: $18,823 SGD|Avg: $11,910 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 5$9,410 SGD
Retailer 8$9,411 SGD
Retailer 7$10,195 SGD
Retailer 6$10,353 SGD
Retailer 3$10,594 SGD
Retailer 10$11,318 SGD
Retailer 9$11,765 SGD
Retailer 2$11,769 SGD
Retailer 4$15,683 SGD
NZ Jewellers$18,823 SGD

41 data points across 10 retailers

12 retailers$8,897 SGD to $18,823 SGD

B+
Cheapest Retailer
-
$8,897 SGD
$6,957 USD
B
Retailer 2
-
$9,410 SGD
$7,358 USD
View
Final sale: no returns
B
Retailer 3
-
$10,195 SGD
$7,972 USD
View
B
Retailer 4
-
$10,353 SGD
$8,095 USD
View
B
Retailer 5
-
$10,594 SGD
£6,523 GBP
View
B
Retailer 6
-
$11,318 SGD
$8,850 USD
View
B
Retailer 7
-
$11,318 SGD
$8,850 USD
View
B
Retailer 8
-
$11,702 SGD
$9,150 USD
View
B
Retailer 9
-
$11,765 SGD
$9,199 USD
View
B
Retailer 10
-
$11,769 SGD
€8,764 EUR
View
B
Retailer 11
-
$15,683 SGD
£9,656 GBP
View
Most Expensive
C
NZ Jewellers
ab9b8bea-9850-4c55-a97e-6b68f5f90322 · Oct 30
$18,823 SGD
$14,718 USD
View
11 more retailers have this diamond
Prices start from $8,897 SGDSave up to $9,926 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
$8,897 SGD