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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

GD • E/SI1 • GIA 1549544742

Certificate GIA 1549544742

Diamond specifications and retailer prices

From HK$34,313 HKD
₹416,516 INR
As of October 30, 2026
Save HK$9,066 HKD (21%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$43,379 HKD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1549544742. Listed at 7 retailers as of October 29, 2026, with prices from HK$34,313 to HK$43,379, a HK$9,066 spread on the same certified stone. Blue Nile lists it at HK$43,379. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549544742
Dimensions6.90 × 5.63 × 4.06 mm
L/W Ratio1.23
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.90 mm5.63 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549544742
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.1%

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 30
Current: HK$43,379 HKD|Low: HK$34,106 HKD|High: HK$49,852 HKD|Avg: HK$41,720 HKD|-10.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2HK$34,313 HKD
Retailer 3HK$36,608 HKD
Retailer 5HK$38,553 HKD
Retailer 4HK$39,549 HKD
Retailer 6HK$42,980 HKD
Blue NileHK$43,379 HKD
Retailer 7HK$49,852 HKD

45 data points across 7 retailers

7 retailersHK$34,313 HKD to HK$43,379 HKD

A
Cheapest Retailer
-
HK$34,313 HKD
₹416,516 INR
A
Retailer 2
-
HK$36,608 HKD
$4,666 USD
View
A
Retailer 3
-
HK$38,553 HKD
MYR 20,016 MYR
View
A
Retailer 4
-
HK$39,549 HKD
SGD 6,812 SGD
View
B+
Retailer 5
-
HK$42,765 HKD
A$8,386 AUD
View
B+
Retailer 6
-
HK$42,980 HKD
A$8,428 AUD
View
Most Expensive
B+
Blue Nile
28033809 · Oct 29
HK$43,379 HKD
$5,529 USD
View
6 more retailers have this diamond
Prices start from HK$34,313 HKDSave up to HK$9,066 HKD

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
HK$34,313 HKD