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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 3555438928

Certificate GIA 3555438928

Diamond specifications and retailer prices

From HK$41,718 HKD
$5,317 USD
As of November 1, 2026
Save HK$38,308 HKD (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$80,025 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct 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 3555438928. Listed at 18 retailers as of November 1, 2026, with prices from HK$41,718 to HK$80,025, a HK$38,308 spread on the same certified stone. MOH London lists it at HK$80,025. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555438928
Dimensions7.30 × 7.34 × 4.58 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.30 mm7.34 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555438928
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.5%

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$80,025 HKD|Low: HK$41,157 HKD|High: HK$80,992 HKD|Avg: HK$52,230 HKD|-1.2%
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
November 3, 2026
Retailer 11HK$41,157 HKD
Retailer 19HK$41,718 HKD
Retailer 5HK$42,918 HKD
Retailer 17HK$42,953 HKD
Retailer 3HK$43,487 HKD
Retailer 6HK$45,421 HKD
Retailer 18HK$45,782 HKD
Retailer 10HK$48,387 HKD
Retailer 4HK$48,488 HKD
Retailer 13HK$49,211 HKD
Retailer 8HK$50,011 HKD
Retailer 12HK$50,105 HKD
Retailer 2HK$51,316 HKD
Retailer 9HK$51,406 HKD
Retailer 7HK$55,584 HKD
Retailer 14HK$55,863 HKD
Retailer 15HK$57,809 HKD
Retailer 16HK$66,736 HKD
MOH LondonHK$80,025 HKD

26 data points across 19 retailers

18 retailersHK$41,718 HKD to HK$80,025 HKD

A
Cheapest Retailer
-
HK$41,718 HKD
$5,317 USD
A
Retailer 2
-
HK$42,918 HKD
$5,470 USD
View
A
Retailer 3
-
HK$42,953 HKD
$5,474 USD
View
A
Retailer 4
-
HK$43,487 HKD
$5,542 USD
View
B+
Retailer 5
-
HK$45,421 HKD
$5,789 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$45,782 HKD
$5,835 USD
View
B+
Retailer 7
-
HK$48,488 HKD
$6,180 USD
View
B+
Retailer 8
-
HK$49,211 HKD
$6,272 USD
View
Retailer 9
-
HK$50,011 HKD
$6,374 USD
View
Price last confirmed 19 days ago
B+
Retailer 10
-
HK$50,105 HKD
$6,386 USD
View
B+
Retailer 11
-
HK$51,316 HKD
£5,150 GBP
View
Retailer 12
-
HK$51,406 HKD
A$10,080 AUD
View
Price last confirmed 30 days ago
Retailer 13
-
HK$52,420 HKD
$6,681 USD
View
Price last confirmed 26 days ago
B+
Retailer 14
-
HK$55,584 HKD
$7,084 USD
View
B+
Retailer 15
-
HK$55,863 HKD
£5,606 GBP
View
B+
Retailer 16
-
HK$57,809 HKD
€7,017 EUR
View
B
Retailer 17
-
HK$66,736 HKD
ZAR 137,409 ZAR
View
Most Expensive
B
MOH London
BCCCD8CA4 · Nov 2
HK$80,025 HKD
£8,031 GBP
View
17 more retailers have this diamond
Prices start from HK$41,718 HKDSave up to HK$38,308 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 Round
HK$41,718 HKD