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1.57ct E I1 Round Natural Diamond

EX • E/I1 • IGI 175579856

Shape and cutting style on the report: Round brilliant

Certificate IGI 175579856

Diamond specifications and retailer prices

From HK$21,709 HKD
$2,767 USD
As of October 30, 2026
Save HK$20,422 HKD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$42,131 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 175579856. Listed at 7 retailers as of October 30, 2026, with prices from HK$21,709 to HK$42,131, a HK$20,422 spread on the same certified stone. NZ Jewellers lists it at HK$42,131. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 175579856
Dimensions7.31 × 7.37 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
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Top View
7.31 mm7.37 mm1.57 ctE / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 175579856
Side View
Table 59.5%Crown 36.4°Girdle: MED-STKPavilion 41.6°CuletDepth 63.3%

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$42,131 HKD|Low: HK$21,709 HKD|High: HK$42,516 HKD|Avg: HK$28,369 HKD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 7HK$21,709 HKD
Retailer 3HK$24,180 HKD
Retailer 4HK$24,180 HKD
Retailer 6HK$25,114 HKD
Retailer 5HK$27,907 HKD
Retailer 2HK$28,388 HKD
Retailer 8HK$29,332 HKD
NZ JewellersHK$42,131 HKD

31 data points across 8 retailers

7 retailersHK$21,709 HKD to HK$42,131 HKD

A
Cheapest Retailer
-
HK$21,709 HKD
$2,767 USD
A
Retailer 2
-
HK$24,180 HKD
$3,082 USD
View
A
Retailer 3
-
HK$24,180 HKD
$3,082 USD
View
A
Retailer 4
-
HK$25,114 HKD
$3,201 USD
View
A
Retailer 5
-
HK$27,907 HKD
$3,557 USD
View
A
Retailer 6
-
HK$28,388 HKD
€3,446 EUR
View
Most Expensive
B+
NZ Jewellers
5ca9c548-1c0e-4693-8692-9d34c7686e15 · Oct 30
HK$42,131 HKD
$5,370 USD
View
6 more retailers have this diamond
Prices start from HK$21,709 HKDSave up to HK$20,422 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
1.57ct Round
HK$21,709 HKD