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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 1545346290

Certificate GIA 1545346290

Diamond specifications and retailer prices

From HK$29,928 HKD
As of November 1, 2026
Save HK$39,575 HKD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$69,503 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1545346290. Listed at 18 retailers as of October 28, 2026, with prices from HK$29,928 to HK$69,503, a HK$39,575 spread on the same certified stone. Queensmith lists it at HK$69,503. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545346290
Dimensions7.47 × 5.88 × 4.12 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.47 mm5.88 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1545346290
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

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$69,503 HKD|Low: HK$29,627 HKD|High: HK$70,001 HKD|Avg: HK$43,184 HKD|+2.1%
Queensmith
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
November 3, 2026
Retailer 12HK$29,928 HKD
Retailer 8HK$32,159 HKD
Retailer 14HK$34,931 HKD
Retailer 6HK$35,284 HKD
Retailer 3HK$36,477 HKD
Retailer 15HK$38,047 HKD
Retailer 2HK$39,300 HKD
Retailer 13HK$39,521 HKD
Retailer 4HK$39,937 HKD
Retailer 7HK$40,152 HKD
Retailer 5HK$40,711 HKD
Retailer 9HK$44,718 HKD
Retailer 11HK$48,579 HKD
Retailer 10HK$62,946 HKD
QueensmithHK$69,503 HKD

29 data points across 15 retailers

18 retailersHK$29,928 HKD to HK$69,503 HKD

A
Cheapest Retailer
-
HK$29,928 HKD
A
Retailer 2
-
HK$32,159 HKD
₹390,355 INR
View
A
Retailer 3
-
HK$34,931 HKD
$4,452 USD
View
A
Retailer 4
-
HK$35,284 HKD
SGD 6,077 SGD
View
A
Retailer 5
-
HK$36,477 HKD
$4,649 USD
View
Final sale: no returns
A
Retailer 6
-
HK$36,688 HKD
$4,676 USD
View
A
Retailer 7
-
HK$36,720 HKD
$4,680 USD
View
A
Retailer 8
-
HK$38,047 HKD
SGD 6,553 SGD
View
Price last confirmed 7 days ago
A
Retailer 9
-
HK$39,300 HKD
£3,944 GBP
View
A
Retailer 10
-
HK$39,521 HKD
$5,037 USD
View
B+
Retailer 11
-
HK$39,937 HKD
$5,090 USD
View
Retailer 12
-
HK$40,152 HKD
A$7,873 AUD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
HK$40,637 HKD
A$7,968 AUD
View
B+
Retailer 14
-
HK$40,711 HKD
$5,189 USD
View
B+
Retailer 15
-
HK$44,718 HKD
€5,428 EUR
View
B+
Retailer 16
-
HK$48,579 HKD
ZAR 100,023 ZAR
View
B
Retailer 17
-
HK$62,946 HKD
£6,317 GBP
View
Most Expensive
B
Queensmith
1545346290 · Oct 28
HK$69,503 HKD
£6,975 GBP
View
17 more retailers have this diamond
Prices start from HK$29,928 HKDSave up to HK$39,575 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 Cushion
HK$29,928 HKD