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Round|Natural|GIA

1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1553168978

Certificate GIA 1553168978

Diamond specifications and retailer prices

From HK$46,444 HKD
As of November 6, 2026
Save HK$36,438 HKD (44%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: HK$82,883 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553168978. Listed at 26 retailers as of November 6, 2026, with prices from HK$46,444 to HK$82,883, a HK$36,438 spread on the same certified stone. MOH London lists it at HK$82,883. 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

1.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1553168978
Dimensions7.56 × 7.60 × 4.51 mm
L/W Ratio1.01
Girdle conditionThin to Medium
Culet sizeNone
Top View
7.56 mm7.60 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553168978
Side View
Table 62.0%Crown 33.5°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 59.4%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: HK$82,883 HKD|Low: HK$44,665 HKD|High: HK$82,883 HKD|Avg: HK$58,766 HKD|+0.5%
MOH London
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
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 7, 2026
Retailer 12HK$44,697 HKD
Retailer 3HK$46,444 HKD
Retailer 2HK$46,507 HKD
Retailer 24HK$47,244 HKD
Retailer 14HK$48,592 HKD
Retailer 23HK$50,003 HKD
Retailer 21HK$50,199 HKD
Retailer 15HK$54,125 HKD
Retailer 22HK$55,434 HKD
Retailer 16HK$57,111 HKD
Retailer 20HK$57,479 HKD
Retailer 6HK$57,965 HKD
Retailer 17HK$58,632 HKD
Retailer 5HK$60,113 HKD
Retailer 10HK$60,113 HKD
Retailer 7HK$62,072 HKD
Retailer 9HK$62,660 HKD
Retailer 19HK$63,514 HKD
Retailer 18HK$66,328 HKD
Retailer 4HK$66,493 HKD
Retailer 11HK$67,911 HKD
Retailer 13HK$73,922 HKD
Retailer 8HK$74,361 HKD
MOH LondonHK$82,883 HKD

25 data points across 24 retailers

26 retailersHK$46,444 HKD to HK$82,883 HKD

Retailer 1
-
HK$43,137 HKD
Price last confirmed 18 days ago
B+
Retailer 2
-
HK$46,444 HKD
View
B+
Retailer 3
-
HK$46,507 HKD
View
B+
Retailer 4
-
HK$47,244 HKD
View
Retailer 5
-
HK$47,934 HKD
View
Price last confirmed 37 days ago
Retailer 6
-
HK$48,592 HKD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
HK$50,003 HKD
View
Final sale: no returns
B+
Retailer 8
-
HK$50,199 HKD
View
Retailer 9
-
HK$54,125 HKD
View
Price last confirmed 26 days ago
B+
Retailer 10
-
HK$55,434 HKD
View
Retailer 11
-
HK$57,111 HKD
View
Price last confirmed 34 days ago
B+
Retailer 12
-
HK$57,479 HKD
View
B+
Retailer 13
-
HK$57,965 HKD
View
Retailer 14
-
HK$58,632 HKD
View
Price last confirmed 30 days ago
Retailer 15
-
HK$59,533 HKD
View
Price last confirmed 39 days ago
B
Retailer 16
-
HK$60,113 HKD
View
B
Retailer 17
-
HK$60,113 HKD
View
B+
Retailer 18
-
HK$62,072 HKD
View
B+
Retailer 19
-
HK$62,660 HKD
View
B+
Retailer 20
-
HK$63,514 HKD
View
B+
Retailer 21
-
HK$66,328 HKD
View
B
Retailer 22
-
HK$66,493 HKD
View
Retailer 23
-
HK$67,652 HKD
View
Price last confirmed 39 days ago
B
Retailer 24
-
HK$73,922 HKD
View
B
Retailer 25
-
HK$74,361 HKD
View
Most Expensive
B
MOH London
ADCE41C9E · Nov 7
HK$82,883 HKD
£8,327 GBP
View
25 more retailers have this diamond
Prices start from HK$46,444 HKDSave up to HK$36,438 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+
1.55ct Round
HK$46,444 HKD