CaratHunter
Plans
Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 5556481538

Certificate GIA 5556481538

Diamond specifications and retailer prices

From $6,421 SGD
$5,010 USD
As of October 29, 2026
Save $5,293 SGD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,714 SGD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E 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 5556481538. Listed at 10 retailers as of October 27, 2026, with prices from $6,421 to $11,714, a $5,293 spread on the same certified stone. Wholesale Diamonds Direct lists it at $11,714. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556481538
Dimensions7.50 × 5.93 × 4.08 mm
L/W Ratio1.26
Culet sizeNone
Top View
7.50 mm5.93 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556481538
Side View
Table 69.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.8%

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: Oct 29
Current: $8,855 SGD|Low: $6,421 SGD|High: $11,714 SGD|Avg: $8,119 SGD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 30, 2026
Retailer 9$6,421 SGD
Retailer 4$6,503 SGD
Retailer 8$6,761 SGD
Retailer 7$6,966 SGD
Retailer 2$7,207 SGD
Retailer 5$7,942 SGD
Retailer 3$8,243 SGD
Retailer 1$8,855 SGD
Retailer 6$10,550 SGD
Wholesale Diamonds Direct$11,714 SGD

46 data points across 10 retailers

10 retailers$6,421 SGD to $11,714 SGD

A
Cheapest Retailer
-
$6,421 SGD
$5,010 USD
A
Retailer 2
-
$6,503 SGD
View
A
Retailer 3
-
$6,761 SGD
$5,275 USD
View
A
Retailer 4
-
$6,966 SGD
View
A
Retailer 5
-
$7,207 SGD
£4,428 GBP
View
A
Retailer 6
-
$7,942 SGD
$6,196 USD
View
A
Retailer 7
-
$8,243 SGD
€6,125 EUR
View
B+
Retailer 8
-
$8,855 SGD
$6,909 USD
View
B+
Retailer 9
-
$10,765 SGD
$8,399 USD
View
Most Expensive
B
Wholesale Diamonds Direct
471310083 · Oct 27
$11,714 SGD
$9,139 USD
View
9 more retailers have this diamond
Prices start from $6,421 SGDSave up to $5,293 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
$6,421 SGD