CaratHunter
Plans
Cushion|Natural|GIA

0.51ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 7568435588

Certificate GIA 7568435588

Diamond specifications and retailer prices

From HK$3,174 HKD
As of November 6, 2026
Save HK$6,834 HKD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$14,034 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7568435588. Listed at 18 retailers as of November 1, 2026, with a 215% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7568435588
Dimensions5.81 × 4.15 × 2.67 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud
Top View
5.81 mm4.15 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7568435588
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.4%

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 6
Current: HK$14,034 HKD|Low: HK$3,174 HKD|High: HK$14,034 HKD|Avg: HK$6,016 HKD|+3.7%
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 6, 2026
Retailer 2HK$3,174 HKD
Retailer 15HK$3,707 HKD
Retailer 4HK$3,997 HKD
Retailer 5HK$4,467 HKD
Retailer 14HK$4,671 HKD
Retailer 6HK$5,000 HKD
Retailer 8HK$5,290 HKD
Retailer 7HK$5,361 HKD
Retailer 10HK$5,384 HKD
Retailer 13HK$5,431 HKD
Retailer 3HK$5,878 HKD
Retailer 9HK$6,403 HKD
Retailer 11HK$6,685 HKD
Retailer 12HK$10,008 HKD
QueensmithHK$14,034 HKD

25 data points across 15 retailers

18 retailersHK$3,174 HKD to HK$10,008 HKD

A
Cheapest Retailer
-
HK$3,174 HKD
B+
Retailer 2
-
HK$3,707 HKD
View
A
Retailer 3
-
HK$3,997 HKD
View
Final sale: no returns
Retailer 4
-
HK$4,467 HKD
View
Price last confirmed 17 days ago
Retailer 5
-
HK$4,671 HKD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$5,000 HKD
View
B
Retailer 7
-
HK$5,267 HKD
View
B+
Retailer 8
-
HK$5,290 HKD
View
B
Retailer 9
-
HK$5,361 HKD
View
B+
Retailer 10
-
HK$5,384 HKD
View
B
Retailer 11
-
HK$5,431 HKD
View
B
Retailer 12
-
HK$5,878 HKD
View
B
Retailer 13
-
HK$6,035 HKD
View
B
Retailer 14
-
HK$6,403 HKD
View
B
Retailer 15
-
HK$6,685 HKD
View
Retailer 16
-
HK$7,289 HKD
View
Price last confirmed 34 days ago
B
Retailer 17
-
HK$10,008 HKD
View
Most Expensive
Queensmith
7568435588 · Oct 28
HK$14,034 HKD
£1,410 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from HK$3,174 HKDSave up to HK$6,834 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
0.51ct Cushion
HK$3,174 HKD