CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1235579975

Certificate GIA 1235579975

Diamond specifications and retailer prices

From $11,801 NZD
$6,640 USD
As of November 2, 2026
Save $10,362 NZD (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $22,163 NZD 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 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 1235579975. Listed at 21 retailers as of November 2, 2026, with prices from $11,801 to $22,163, a $10,362 spread on the same certified stone. MOH London lists it at $22,163. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1235579975
Dimensions6.68 × 6.64 × 4.43 mm
L/W Ratio1.01
Top View
6.68 mm6.64 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1235579975
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

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: $22,163 NZD|Low: $11,083 NZD|High: $22,430 NZD|Avg: $15,519 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$11,801 NZD
Retailer 7$11,872 NZD
Retailer 5$13,300 NZD
Retailer 8$13,300 NZD
Retailer 3$14,828 NZD
Retailer 6$15,080 NZD
Retailer 2$16,473 NZD
Retailer 4$19,537 NZD
MOH London$22,163 NZD

44 data points across 9 retailers

21 retailers$11,801 NZD to $22,163 NZD

B
Cheapest Retailer
-
$11,801 NZD
$6,640 USD
Retailer 2
-
$11,872 NZD
$6,680 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$12,352 NZD
$6,950 USD
View
B
Retailer 4
-
$12,452 NZD
$7,006 USD
View
B
Retailer 5
-
$12,782 NZD
$7,192 USD
View
B
Retailer 6
-
$13,150 NZD
CA$10,276 CAD
View
B
Retailer 7
-
$13,268 NZD
$7,465 USD
View
B
Retailer 8
-
$13,300 NZD
$7,483 USD
View
Final sale: no returns
B
Retailer 9
-
$13,300 NZD
$7,483 USD
View
B
Retailer 10
-
$13,532 NZD
$7,614 USD
View
B
Retailer 11
-
$14,828 NZD
£6,569 GBP
View
B
Retailer 12
-
$14,867 NZD
$8,365 USD
View
Retailer 13
-
$15,080 NZD
A$13,054 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$15,255 NZD
$8,583 USD
View
B
Retailer 15
-
$15,836 NZD
$8,910 USD
View
B
Retailer 16
-
$15,836 NZD
$8,910 USD
View
B
Retailer 17
-
$16,369 NZD
$9,210 USD
View
B
Retailer 18
-
$16,473 NZD
€8,827 EUR
View
Retailer 19
-
$17,512 NZD
$9,853 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$19,537 NZD
ZAR 177,588 ZAR
View
Most Expensive
B
MOH London
B8380E7D5 · Nov 2
$22,163 NZD
£9,819 GBP
View
20 more retailers have this diamond
Prices start from $11,801 NZDSave up to $10,362 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.

B
1.51ct Cushion
$11,801 NZD