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Round|Natural|GIA

1.80ct N SI1 Round Natural Diamond

EX • N/SI1 • GIA 7556392423

Certificate GIA 7556392423

Diamond specifications and retailer prices

From HK$28,988 HKD
As of November 5, 2026
Save HK$23,834 HKD (45%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$52,822 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.8ct natural round diamond

This 1.8ct natural round sits in the one-and-a-half to two carat band, graded N colour (tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7556392423. Listed at 8 retailers as of November 5, 2026, with prices from HK$28,988 to HK$52,822, a HK$23,834 spread on the same certified stone. NZ Jewellers lists it at HK$52,822. 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

1.80
Carat
N
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7556392423
Dimensions7.68 × 7.73 × 4.82 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
7.68 mm7.73 mm1.80 ctN / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7556392423
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$52,822 HKD|Low: HK$28,988 HKD|High: HK$56,164 HKD|Avg: HK$35,613 HKD|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8HK$28,988 HKD
Retailer 4HK$30,322 HKD
Retailer 6HK$30,322 HKD
Retailer 7HK$31,483 HKD
Retailer 5HK$34,982 HKD
Retailer 2HK$35,217 HKD
Retailer 3HK$37,006 HKD
NZ JewellersHK$52,822 HKD

30 data points across 8 retailers

8 retailersHK$28,988 HKD to HK$52,822 HKD

B+
Cheapest Retailer
-
HK$28,988 HKD
B+
Retailer 2
-
HK$30,322 HKD
View
Retailer 3
-
HK$30,322 HKD
View
Price last confirmed 8 days ago
B
Retailer 4
-
HK$31,483 HKD
View
B
Retailer 5
-
HK$34,982 HKD
View
B
Retailer 6
-
HK$35,217 HKD
View
B
Retailer 7
-
HK$37,006 HKD
View
Most Expensive
C
NZ Jewellers
55efd63b-6b65-4e40-81c3-efeaa55dee0f · Nov 5
HK$52,822 HKD
$6,733 USD
View
7 more retailers have this diamond
Prices start from HK$28,988 HKDSave up to HK$23,834 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+
1.80ct Round
HK$28,988 HKD