Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2231926496

Certificate GIA 2231926496

Diamond specifications and retailer prices

From $10,058 NZD

$5,659 USD

As of November 2, 2026

Save $9,203 NZD (48%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $19,260 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231926496. Listed at 14 retailers as of November 2, 2026, with prices from $10,058 to $19,260, a $9,203 spread on the same certified stone. MOH London lists it at $19,260. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51

Carat

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceStrong

Pavilion angle35.83°

OriginNatural

Grading LabGIA

CertificateGIA 2231926496

Dimensions7.45 × 5.87 × 4.09 mm

L/W Ratio1.27

Key to symbols

Twinning Wisp, Crystal, Feather

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceStrong

CertificateGIA 2231926496

Side View

Caratlytics Score

How it works →

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: $19,260 NZD|Low: $10,024 NZD|High: $19,491 NZD|Avg: $13,538 NZD|-0.1%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 2, 2026

Retailer 9$10,058 NZD

Retailer 5$11,556 NZD

Retailer 8$11,556 NZD

Retailer 10$11,588 NZD

Retailer 3$13,029 NZD

Retailer 7$13,207 NZD

Retailer 6$13,324 NZD

Retailer 2$15,097 NZD

Retailer 4$16,979 NZD

MOH London$19,260 NZD

44 data points across 10 retailers

14 retailers$10,058 NZD to $19,260 NZD

Cheapest Retailer

$10,058 NZD

$5,659 USD

B+

Retailer 2

$10,918 NZD

$6,143 USD

View

B+

Retailer 3

$10,936 NZD

$6,153 USD

View

B+

Retailer 4

$11,070 NZD

$6,229 USD

View

B+

Retailer 5

$11,556 NZD

$6,502 USD

View

Final sale: no returns

B+

Retailer 6

$11,556 NZD

$6,502 USD

View

B+

Retailer 7

$11,588 NZD

$6,520 USD

View

B+

Retailer 8

$13,029 NZD

£5,772 GBP

View

B+

Retailer 9

$13,207 NZD

$7,431 USD

View

Retailer 10

$13,324 NZD

A$11,533 AUD

View

Price last confirmed 11 days ago

B+

Retailer 11

$15,097 NZD

€8,090 EUR

View

Retailer 12

$15,226 NZD

$8,567 USD

View

Price last confirmed 10 days ago

Retailer 13

$16,979 NZD

ZAR 154,335 ZAR

View

Most Expensive

MOH London

75DE28E9A · Nov 2

$19,260 NZD

£8,533 GBP

View

13 more retailers have this diamond

Prices start from $10,058 NZDSave up to $9,203 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.

Similar diamonds

1.51ct Cushion

$10,058 NZD