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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1558685000

Certificate GIA 1558685000

Diamond specifications and retailer prices

From HK$32,357 HKD
$4,124 USD
As of November 1, 2026
Save HK$26,276 HKD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$58,633 HKD at Wholesale Diamonds Direct · As of October 26, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558685000. Listed at 13 retailers as of October 26, 2026, with prices from HK$32,357 to HK$58,633, a HK$26,276 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$58,633. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558685000
Dimensions7.75 × 5.70 × 3.87 mm
L/W Ratio1.36
Culet sizeNone
Top View
7.75 mm5.70 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558685000
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: 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: Nov 1
Current: HK$41,489 HKD|Low: HK$32,357 HKD|High: HK$59,772 HKD|Avg: HK$41,542 HKD|-1.6%
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
Wholesale Diamonds Direct
November 2, 2026
Retailer 10HK$32,357 HKD
Retailer 12HK$32,729 HKD
Retailer 8HK$33,268 HKD
Retailer 9HK$34,029 HKD
Retailer 4HK$35,069 HKD
Retailer 6HK$36,555 HKD
Retailer 13HK$40,470 HKD
Retailer 2HK$40,597 HKD
Retailer 1HK$41,489 HKD
Retailer 7HK$44,566 HKD
Retailer 5HK$45,839 HKD
Retailer 11HK$54,177 HKD
Retailer 3HK$57,575 HKD
Wholesale Diamonds DirectHK$58,633 HKD

31 data points across 14 retailers

13 retailersHK$32,357 HKD to HK$58,633 HKD

A
Cheapest Retailer
-
HK$32,357 HKD
$4,124 USD
A
Retailer 2
-
HK$32,729 HKD
SGD 5,637 SGD
View
A
Retailer 3
-
HK$33,268 HKD
$4,240 USD
View
A
Retailer 4
-
HK$34,029 HKD
$4,337 USD
View
A
Retailer 5
-
HK$35,069 HKD
SGD 6,040 SGD
View
A
Retailer 6
-
HK$36,555 HKD
£3,668 GBP
View
A
Retailer 7
-
HK$40,470 HKD
$5,158 USD
View
A
Retailer 8
-
HK$40,597 HKD
$5,174 USD
View
A
Retailer 9
-
HK$41,489 HKD
€5,036 EUR
View
B+
Retailer 10
-
HK$44,566 HKD
$5,680 USD
View
B
Retailer 11
-
HK$54,177 HKD
$6,905 USD
View
B
Retailer 12
-
HK$57,575 HKD
$7,338 USD
View
Most Expensive
B
Wholesale Diamonds Direct
570704296 · Oct 26
HK$58,633 HKD
$7,473 USD
View
12 more retailers have this diamond
Prices start from HK$32,357 HKDSave up to HK$26,276 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$32,357 HKD