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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 6542413233

Certificate GIA 6542413233

Diamond specifications and retailer prices

From $4,027 SGD
HK$24,600 HKD
As of November 2, 2026
Save $4,909 SGD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,261 SGD at NZ Jewellers · As of October 18, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542413233. Listed at 18 retailers as of October 29, 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

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

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542413233
Dimensions7.36 × 5.80 × 4.08 mm
L/W Ratio1.27
Top View
7.36 mm5.80 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542413233
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.4%

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: Nov 2
Current: $9,261 SGD|Low: $4,027 SGD|High: $9,261 SGD|Avg: $5,716 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 8$4,027 SGD
Retailer 7$4,281 SGD
Retailer 3$4,733 SGD
Retailer 11$4,874 SGD
Retailer 5$5,112 SGD
Retailer 6$5,315 SGD
Retailer 14$5,315 SGD
Retailer 12$5,403 SGD
Retailer 9$5,471 SGD
Retailer 2$5,486 SGD
Retailer 10$5,974 SGD
Retailer 4$6,134 SGD
Retailer 13$8,936 SGD
NZ Jewellers$9,261 SGD

33 data points across 14 retailers

18 retailers$4,027 SGD to $8,936 SGD

A
Cheapest Retailer
-
$4,027 SGD
HK$24,600 HKD
A
Retailer 2
-
$4,281 SGD
₹318,777 INR
View
A
Retailer 3
-
$4,733 SGD
View
A
Retailer 4
-
$4,874 SGD
$3,811 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,966 SGD
$3,883 USD
View
Retailer 6
-
$5,112 SGD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$5,235 SGD
A$6,298 AUD
View
Retailer 8
-
$5,315 SGD
$4,156 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$5,315 SGD
$4,156 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$5,315 SGD
$4,156 USD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$5,403 SGD
£3,327 GBP
View
B+
Retailer 12
-
$5,471 SGD
$4,278 USD
View
B+
Retailer 13
-
$5,486 SGD
$4,290 USD
View
A
Retailer 14
-
$5,974 SGD
€4,449 EUR
View
Retailer 15
-
$6,134 SGD
$4,796 USD
View
Price last confirmed 14 days ago
Retailer 16
-
$6,172 SGD
$4,826 USD
View
Price last confirmed 57 days ago
B
Retailer 17
-
$8,936 SGD
£5,502 GBP
View
Most Expensive
NZ Jewellers
22f46ded-fa04-433c-a764-17a2ffe889a3 · Oct 18
$9,261 SGD
$7,241 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $4,027 SGDSave up to $4,909 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
1.51ct Radiant
$4,027 SGD