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Round|Natural|GIA

1.59ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554325585

Certificate GIA 2554325585

Diamond specifications and retailer prices

From HK$46,368 HKD
$5,910 USD
As of November 1, 2026
Save HK$35,827 HKD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$82,196 HKD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.59ct natural round diamond

This 1.59ct natural round 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 and certified by GIA 2554325585. Listed at 11 retailers as of October 26, 2026, with prices from HK$46,368 to HK$82,196, a HK$35,827 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$82,196. 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

1.59
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2554325585
Dimensions7.46 × 7.41 × 4.67 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.46 mm7.41 mm1.59 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554325585
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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$54,961 HKD|Low: HK$46,368 HKD|High: HK$83,156 HKD|Avg: HK$59,316 HKD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 2, 2026
Retailer 9HK$46,368 HKD
Retailer 5HK$49,310 HKD
Retailer 2HK$54,608 HKD
Retailer 1HK$54,961 HKD
Retailer 10HK$56,269 HKD
Retailer 3HK$58,325 HKD
Retailer 6HK$59,000 HKD
Retailer 7HK$59,000 HKD
Retailer 8HK$60,961 HKD
Retailer 4HK$72,107 HKD
Wholesale Diamonds DirectHK$82,196 HKD

43 data points across 11 retailers

11 retailersHK$46,368 HKD to HK$82,196 HKD

A
Cheapest Retailer
-
HK$46,368 HKD
$5,910 USD
B+
Retailer 2
-
HK$49,310 HKD
$6,285 USD
View
B+
Retailer 3
-
HK$54,608 HKD
A$10,708 AUD
View
B+
Retailer 4
-
HK$54,961 HKD
£5,516 GBP
View
B+
Retailer 5
-
HK$56,269 HKD
$7,172 USD
View
B+
Retailer 6
-
HK$58,325 HKD
€7,080 EUR
View
B+
Retailer 7
-
HK$59,000 HKD
$7,520 USD
View
B+
Retailer 8
-
HK$59,000 HKD
$7,520 USD
View
B
Retailer 9
-
HK$60,961 HKD
$7,770 USD
View
B
Retailer 10
-
HK$72,107 HKD
ZAR 148,475 ZAR
View
Most Expensive
B
Wholesale Diamonds Direct
246709547 · Oct 26
HK$82,196 HKD
$10,477 USD
View
10 more retailers have this diamond
Prices start from HK$46,368 HKDSave up to HK$35,827 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
1.59ct Round
HK$46,368 HKD