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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 2221285699

Certificate GIA 2221285699

Diamond specifications and retailer prices

From HK$74,271 HKD
A$14,564 AUD
As of October 30, 2026
Save HK$18,465 HKD (20%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$92,736 HKD at Zales · As of October 30, 2026
View at Zales

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 2221285699. Listed at 6 retailers as of October 30, 2026, with prices from HK$74,271 to HK$92,736, a HK$18,465 spread on the same certified stone. Zales lists it at HK$92,736. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2221285699
Dimensions7.30 × 5.84 × 4.00 mm
L/W Ratio1.25
Top View
7.30 mm5.84 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2221285699
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$91,154 HKD|Low: HK$69,340 HKD|High: HK$92,472 HKD|Avg: HK$82,268 HKD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 4HK$75,442 HKD
Retailer 2HK$76,276 HKD
Retailer 3HK$87,895 HKD
Retailer 1HK$91,154 HKD

35 data points across 4 retailers

6 retailersHK$74,271 HKD to HK$92,736 HKD

B
Cheapest Retailer
-
HK$74,271 HKD
A$14,564 AUD
B
Retailer 2
-
HK$75,442 HKD
$9,616 USD
View
B
Retailer 3
-
HK$76,276 HKD
$9,722 USD
View
Final sale: no returns
B
Retailer 4
-
HK$87,895 HKD
$11,203 USD
View
B
Retailer 5
-
HK$91,154 HKD
£9,148 GBP
View
Most Expensive
B
Zales
517207766 · Oct 30
HK$92,736 HKD
$11,820 USD
View
5 more retailers have this diamond
Prices start from HK$74,271 HKDSave up to HK$18,465 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.

B
1.51ct Radiant
HK$74,271 HKD