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1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1155978214

Certificate GIA 1155978214

Diamond specifications and retailer prices

From HK$86,734 HKD
$11,055 USD
As of October 25, 2026
Save HK$80,297 HKD (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$167,031 HKD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1155978214. Listed at 18 retailers as of October 25, 2026, with prices from HK$86,734 to HK$167,031, a HK$80,297 spread on the same certified stone. Diamond Quarter lists it at HK$167,031. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1155978214
Dimensions7.38 × 7.36 × 4.47 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.38 mm7.36 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1155978214
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.6%

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: Oct 25
Current: HK$104,323 HKD|Low: HK$82,066 HKD|High: HK$155,648 HKD|Avg: HK$116,370 HKD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6HK$86,734 HKD
Retailer 7HK$94,376 HKD
Retailer 1HK$104,323 HKD
Retailer 5HK$105,701 HKD
Retailer 2HK$119,294 HKD
Retailer 4HK$143,905 HKD
Retailer 3HK$154,622 HKD

44 data points across 7 retailers

18 retailersHK$86,734 HKD to HK$167,031 HKD

B+
Cheapest Retailer
-
HK$86,734 HKD
$11,055 USD
B+
Retailer 2
-
HK$89,904 HKD
$11,459 USD
View
B+
Retailer 3
-
HK$91,371 HKD
$11,646 USD
View
B+
Retailer 4
-
HK$92,007 HKD
CA$16,288 CAD
View
B
Retailer 5
-
HK$94,376 HKD
$12,029 USD
View
Final sale: no returns
B
Retailer 6
-
HK$96,894 HKD
$12,350 USD
View
B
Retailer 7
-
HK$98,479 HKD
$12,552 USD
View
B
Retailer 8
-
HK$104,323 HKD
£10,470 GBP
View
B
Retailer 9
-
HK$105,038 HKD
$13,388 USD
View
B
Retailer 10
-
HK$105,701 HKD
A$20,727 AUD
View
B
Retailer 11
-
HK$106,678 HKD
$13,597 USD
View
B
Retailer 12
-
HK$110,781 HKD
$14,120 USD
View
B
Retailer 13
-
HK$114,100 HKD
$14,543 USD
View
B
Retailer 14
-
HK$119,294 HKD
€14,481 EUR
View
B
Retailer 15
-
HK$143,905 HKD
ZAR 296,315 ZAR
View
B
Retailer 16
-
HK$154,622 HKD
£15,518 GBP
View
B
Retailer 17
-
HK$164,124 HKD
$20,919 USD
View
Most Expensive
B
Diamond Quarter
1.51SI1E1114893CN · Oct 29
HK$167,031 HKD
£16,763 GBP
View
17 more retailers have this diamond
Prices start from HK$86,734 HKDSave up to HK$80,297 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+
1.51ct Round
HK$86,734 HKD