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Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2125868320

Certificate GIA 2125868320

Diamond specifications and retailer prices

From HK$68,222 HKD
$8,695 USD
As of November 1, 2026
Save HK$66,012 HKD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$134,234 HKD at Diamond Quarter · As of October 31, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2125868320. Listed at 19 retailers as of October 31, 2026, with prices from HK$68,222 to HK$134,234, a HK$66,012 spread on the same certified stone. Diamond Quarter lists it at HK$134,234. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2125868320
Dimensions7.37 × 7.35 × 4.56 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.37 mm7.35 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2125868320
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$83,346 HKD|Low: HK$63,875 HKD|High: HK$127,750 HKD|Avg: HK$91,255 HKD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5HK$68,222 HKD
Retailer 6HK$76,649 HKD
Retailer 9HK$76,649 HKD
Retailer 10HK$83,043 HKD
Retailer 1HK$83,346 HKD
Retailer 7HK$84,314 HKD
Retailer 4HK$91,809 HKD
Retailer 8HK$95,817 HKD
Retailer 3HK$119,714 HKD
Retailer 2HK$127,750 HKD

40 data points across 10 retailers

19 retailersHK$68,222 HKD to HK$134,234 HKD

B
Cheapest Retailer
-
HK$68,222 HKD
$8,695 USD
B
Retailer 2
-
HK$69,728 HKD
$8,887 USD
View
B
Retailer 3
-
HK$71,117 HKD
$9,064 USD
View
B
Retailer 4
-
HK$73,774 HKD
CA$13,059 CAD
View
B
Retailer 5
-
HK$76,649 HKD
$9,769 USD
View
B
Retailer 6
-
HK$76,649 HKD
$9,769 USD
View
Final sale: no returns
B
Retailer 7
-
HK$83,043 HKD
$10,584 USD
View
B
Retailer 8
-
HK$83,346 HKD
£8,364 GBP
View
B
Retailer 9
-
HK$84,314 HKD
$10,746 USD
View
B
Retailer 10
-
HK$88,441 HKD
$11,272 USD
View
B
Retailer 11
-
HK$89,916 HKD
$11,460 USD
View
B
Retailer 12
-
HK$89,916 HKD
$11,460 USD
View
B
Retailer 13
-
HK$91,809 HKD
€11,144 EUR
View
B
Retailer 14
-
HK$92,976 HKD
$11,850 USD
View
B
Retailer 15
-
HK$95,817 HKD
$12,212 USD
View
Retailer 16
-
HK$100,869 HKD
$12,856 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
HK$119,714 HKD
£12,014 GBP
View
B
Retailer 18
-
HK$127,750 HKD
$16,282 USD
View
Most Expensive
B
Diamond Quarter
1.51SI2H2120A7B6N · Oct 31
HK$134,234 HKD
£13,471 GBP
View
18 more retailers have this diamond
Prices start from HK$68,222 HKDSave up to HK$66,012 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$68,222 HKD