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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 $6,779 NZD
HK$29,800 HKD
As of November 1, 2026
Save $8,964 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,744 NZD 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 $6,779 to $15,744, a $8,964 spread on the same certified stone. Queensmith lists it at $15,744. 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: $15,744 NZD|Low: $6,711 NZD|High: $15,857 NZD|Avg: $9,782 NZD|+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 12$6,779 NZD
Retailer 8$7,285 NZD
Retailer 14$7,913 NZD
Retailer 6$7,992 NZD
Retailer 3$8,263 NZD
Retailer 15$8,619 NZD
Retailer 2$8,902 NZD
Retailer 13$8,952 NZD
Retailer 4$9,046 NZD
Retailer 7$9,095 NZD
Retailer 5$9,222 NZD
Retailer 9$10,130 NZD
Retailer 11$11,004 NZD
Retailer 10$14,259 NZD
Queensmith$15,744 NZD

29 data points across 15 retailers

18 retailers$6,779 NZD to $15,744 NZD

A
Cheapest Retailer
-
$6,779 NZD
HK$29,800 HKD
A
Retailer 2
-
$7,285 NZD
₹390,355 INR
View
A
Retailer 3
-
$7,913 NZD
$4,452 USD
View
A
Retailer 4
-
$7,992 NZD
SGD 6,077 SGD
View
A
Retailer 5
-
$8,263 NZD
$4,649 USD
View
Final sale: no returns
A
Retailer 6
-
$8,311 NZD
$4,676 USD
View
A
Retailer 7
-
$8,318 NZD
$4,680 USD
View
A
Retailer 8
-
$8,619 NZD
SGD 6,553 SGD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$8,902 NZD
£3,944 GBP
View
A
Retailer 10
-
$8,952 NZD
$5,037 USD
View
B+
Retailer 11
-
$9,046 NZD
$5,090 USD
View
Retailer 12
-
$9,095 NZD
A$7,873 AUD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
$9,205 NZD
A$7,968 AUD
View
B+
Retailer 14
-
$9,222 NZD
$5,189 USD
View
B+
Retailer 15
-
$10,130 NZD
€5,428 EUR
View
B+
Retailer 16
-
$11,004 NZD
ZAR 100,023 ZAR
View
B
Retailer 17
-
$14,259 NZD
£6,317 GBP
View
Most Expensive
B
Queensmith
1545346290 · Oct 28
$15,744 NZD
£6,975 GBP
View
17 more retailers have this diamond
Prices start from $6,779 NZDSave up to $8,964 NZD

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
$6,779 NZD