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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 5172058360

Certificate GIA 5172058360

Diamond specifications and retailer prices

From $6,947 NZD
$3,909 USD
As of November 2, 2026
Save $7,681 NZD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $14,629 NZD at MOH London · As of October 29, 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 I 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 5172058360. Listed at 23 retailers as of October 29, 2026, with prices from $6,947 to $14,629, a $7,681 spread on the same certified stone. MOH London lists it at $14,629. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5172058360
Dimensions6.59 × 6.23 × 4.30 mm
L/W Ratio1.06
Top View
6.59 mm6.23 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 5172058360
Side View
Table 66.0%CrownGirdle: STK-EXTPavilionCulet: NoneDepth 69.0%

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 2
Current: $14,629 NZD|Low: $7,276 NZD|High: $14,728 NZD|Avg: $9,638 NZD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$7,276 NZD
Retailer 6$7,367 NZD
Retailer 9$8,277 NZD
Retailer 2$8,669 NZD
Retailer 4$9,120 NZD
Retailer 7$9,210 NZD
Retailer 3$10,335 NZD
Retailer 5$11,230 NZD
MOH London$14,629 NZD

36 data points across 9 retailers

23 retailers$6,947 NZD to $14,629 NZD

A
Cheapest Retailer
-
$6,947 NZD
$3,909 USD
B+
Retailer 2
-
$7,138 NZD
$4,016 USD
View
B+
Retailer 3
-
$7,218 NZD
$4,061 USD
View
B+
Retailer 4
-
$7,276 NZD
$4,094 USD
View
Final sale: no returns
B+
Retailer 5
-
$7,304 NZD
$4,110 USD
View
Retailer 6
-
$7,367 NZD
$4,145 USD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$7,816 NZD
CA$6,108 CAD
View
B+
Retailer 8
-
$7,820 NZD
$4,400 USD
View
B+
Retailer 9
-
$8,277 NZD
$4,657 USD
View
B+
Retailer 10
-
$8,669 NZD
£3,841 GBP
View
B+
Retailer 11
-
$8,702 NZD
$4,896 USD
View
B+
Retailer 12
-
$8,716 NZD
$4,904 USD
View
B+
Retailer 13
-
$8,737 NZD
$4,916 USD
View
B+
Retailer 14
-
$9,120 NZD
£4,041 GBP
View
Retailer 15
-
$9,210 NZD
A$7,973 AUD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
$9,295 NZD
$5,230 USD
View
B+
Retailer 17
-
$9,295 NZD
$5,230 USD
View
B
Retailer 18
-
$9,597 NZD
$5,400 USD
View
Retailer 19
-
$10,084 NZD
$5,674 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$10,335 NZD
€5,538 EUR
View
B
Retailer 21
-
$11,230 NZD
ZAR 102,081 ZAR
View
B
Retailer 22
-
$13,225 NZD
$7,441 USD
View
Most Expensive
B
MOH London
24751E2B7 · Oct 29
$14,629 NZD
£6,481 GBP
View
22 more retailers have this diamond
Prices start from $6,947 NZDSave up to $7,681 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
$6,947 NZD