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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2245001864

Certificate GIA 2245001864

Diamond specifications and retailer prices

From HK$46,105 HKD
$5,876 USD
As of October 28, 2026
Save HK$41,815 HKD (48%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$111,121 HKD at NZ Jewellers · As of September 21, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245001864. Listed at 23 retailers as of October 28, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245001864
Dimensions7.57 × 5.59 × 3.79 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.57 mm5.59 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245001864
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.8%

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 28
Current: HK$51,977 HKD|Low: HK$46,105 HKD|High: HK$91,329 HKD|Avg: HK$58,034 HKD|-1.7%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 17HK$46,105 HKD
Retailer 8HK$46,200 HKD
Retailer 4HK$49,189 HKD
Retailer 3HK$49,919 HKD
Retailer 14HK$51,104 HKD
Retailer 6HK$51,464 HKD
Retailer 18HK$51,967 HKD
Retailer 1HK$51,977 HKD
Retailer 10HK$52,461 HKD
Retailer 7HK$52,571 HKD
Retailer 9HK$54,219 HKD
Retailer 5HK$54,591 HKD
Retailer 12HK$56,480 HKD
Retailer 13HK$60,166 HKD
Retailer 11HK$60,437 HKD
Retailer 2HK$66,774 HKD
Retailer 16HK$68,456 HKD
Retailer 19HK$76,400 HKD
Retailer 15HK$87,921 HKD

22 data points across 19 retailers

23 retailersHK$46,105 HKD to HK$87,921 HKD

A
Cheapest Retailer
-
HK$46,105 HKD
$5,876 USD
A
Retailer 2
-
HK$46,200 HKD
View
A
Retailer 3
-
HK$49,189 HKD
$6,269 USD
View
A
Retailer 4
-
HK$49,919 HKD
$6,362 USD
View
A
Retailer 5
-
HK$51,104 HKD
$6,513 USD
View
A
Retailer 6
-
HK$51,464 HKD
A$10,091 AUD
View
A
Retailer 7
-
HK$51,967 HKD
$6,623 USD
View
A
Retailer 8
-
HK$51,977 HKD
€6,309 EUR
View
A
Retailer 9
-
HK$52,461 HKD
$6,686 USD
View
Final sale: no returns
A
Retailer 10
-
HK$52,571 HKD
$6,700 USD
View
Retailer 11
-
HK$53,000 HKD
SGD 9,128 SGD
View
Price last confirmed 22 days ago
A
Retailer 12
-
HK$54,219 HKD
$6,910 USD
View
A
Retailer 13
-
HK$54,591 HKD
$6,958 USD
View
A
Retailer 14
-
HK$56,480 HKD
£5,668 GBP
View
Retailer 15
-
HK$59,319 HKD
$7,560 USD
View
Price last confirmed 21 days ago
A
Retailer 16
-
HK$60,166 HKD
$7,668 USD
View
Retailer 17
-
HK$60,437 HKD
A$11,850 AUD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
HK$61,345 HKD
A$12,028 AUD
View
B+
Retailer 19
-
HK$66,774 HKD
$8,510 USD
View
B+
Retailer 20
-
HK$68,456 HKD
€8,309 EUR
View
B+
Retailer 21
-
HK$76,400 HKD
ZAR 157,302 ZAR
View
B+
Retailer 22
-
HK$87,921 HKD
£8,823 GBP
View
Most Expensive
NZ Jewellers
d72e9f87-f2b0-40af-9c57-de40d7e9850d · Sep 21
HK$111,121 HKD
$14,162 USD
View
Price last confirmed 38 days ago
22 more retailers have this diamond
Prices start from HK$46,105 HKDSave up to HK$41,815 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$46,105 HKD