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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 1257122355

Certificate GIA 1257122355

Diamond specifications and retailer prices

From HK$57,473 HKD
$7,325 USD
As of November 2, 2026
Save HK$50,593 HKD (47%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$108,066 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1257122355. Listed at 20 retailers as of November 2, 2026, with prices from HK$57,473 to HK$108,066, a HK$50,593 spread on the same certified stone. MOH London lists it at HK$108,066. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1257122355
Dimensions6.67 × 6.35 × 4.29 mm
L/W Ratio1.05
Top View
6.67 mm6.35 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1257122355
Side View
Table 65.0%CrownGirdle: MED-EXTPavilionCulet: NoneDepth 67.5%

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 2
Current: HK$108,066 HKD|Low: HK$57,473 HKD|High: HK$109,371 HKD|Avg: HK$73,951 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3HK$57,473 HKD
Retailer 7HK$57,826 HKD
Retailer 8HK$60,721 HKD
Retailer 11HK$64,848 HKD
Retailer 9HK$65,986 HKD
Retailer 6HK$71,664 HKD
Retailer 10HK$72,341 HKD
Retailer 4HK$72,437 HKD
Retailer 2HK$80,514 HKD
Retailer 5HK$95,265 HKD
MOH LondonHK$108,066 HKD

44 data points across 11 retailers

20 retailersHK$57,473 HKD to HK$108,066 HKD

B
Cheapest Retailer
-
HK$57,473 HKD
$7,325 USD
B
Retailer 2
-
HK$57,826 HKD
$7,370 USD
View
B
Retailer 3
-
HK$60,352 HKD
$7,692 USD
View
B
Retailer 4
-
HK$60,721 HKD
$7,739 USD
View
B
Retailer 5
-
HK$62,474 HKD
$7,962 USD
View
B
Retailer 6
-
HK$63,231 HKD
CA$11,193 CAD
View
B
Retailer 7
-
HK$64,495 HKD
$8,220 USD
View
B
Retailer 8
-
HK$64,848 HKD
$8,265 USD
View
B
Retailer 9
-
HK$65,986 HKD
$8,410 USD
View
Retailer 10
-
HK$71,664 HKD
A$14,052 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
HK$72,341 HKD
$9,220 USD
View
B
Retailer 12
-
HK$72,437 HKD
£7,269 GBP
View
B
Retailer 13
-
HK$74,554 HKD
$9,502 USD
View
B
Retailer 14
-
HK$76,813 HKD
$9,790 USD
View
B
Retailer 15
-
HK$76,813 HKD
$9,790 USD
View
B
Retailer 16
-
HK$79,324 HKD
$10,110 USD
View
B
Retailer 17
-
HK$80,514 HKD
€9,773 EUR
View
Retailer 18
-
HK$85,366 HKD
$10,880 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
HK$95,265 HKD
ZAR 196,151 ZAR
View
Most Expensive
B
MOH London
353BC0986 · Nov 2
HK$108,066 HKD
£10,845 GBP
View
19 more retailers have this diamond
Prices start from HK$57,473 HKDSave up to HK$50,593 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 Cushion
HK$57,473 HKD