Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 2556755740

Certificate GIA 2556755740

Diamond specifications and retailer prices

From $7,989 NZD

$4,495 USD

As of November 1, 2026

Save $7,658 NZD (49%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: $15,647 NZD at MOH London · As of October 29, 2026

View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556755740. Listed at 26 retailers as of October 29, 2026, with prices from $7,989 to $15,647, a $7,658 spread on the same certified stone. MOH London lists it at $15,647. 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

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 2556755740

Dimensions8.77 × 6.26 × 3.93 mm

L/W Ratio1.40

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Twinning Wisp, Knot, Crystal, Feather, Indented Natural, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 2556755740

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1

Current: $15,647 NZD|Low: $8,252 NZD|High: $15,773 NZD|Avg: $10,722 NZD|+0.3%

MOH London

Retailer 2

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Retailer 24

November 2, 2026

Retailer 11$8,252 NZD

Retailer 9$8,346 NZD

Retailer 24$8,348 NZD

Retailer 12$8,452 NZD

Retailer 10$8,833 NZD

Retailer 6$8,966 NZD

Retailer 8$9,464 NZD

Retailer 7$9,571 NZD

Retailer 19$9,571 NZD

Retailer 23$9,692 NZD

Retailer 22$9,738 NZD

Retailer 17$9,801 NZD

Retailer 15$10,028 NZD

Retailer 2$10,164 NZD

Retailer 18$10,305 NZD

Retailer 4$10,699 NZD

Retailer 14$10,699 NZD

Retailer 16$10,833 NZD

Retailer 21$11,042 NZD

Retailer 5$11,055 NZD

Retailer 13$11,281 NZD

Retailer 20$12,979 NZD

Retailer 3$15,304 NZD

MOH London$15,647 NZD

34 data points across 24 retailers

26 retailers$7,989 NZD to $15,647 NZD

B+

Cheapest Retailer

$7,989 NZD

$4,495 USD

B+

Retailer 2

$8,252 NZD

$4,643 USD

View

B+

Retailer 3

$8,346 NZD

$4,696 USD

View

B+

Retailer 4

$8,348 NZD

$4,697 USD

View

B+

Retailer 5

$8,452 NZD

$4,755 USD

View

B+

Retailer 6

$8,696 NZD

A$7,527 AUD

View

B+

Retailer 7

$8,723 NZD

$4,908 USD

View

B+

Retailer 8

$8,833 NZD

$4,970 USD

View

Final sale: no returns

B+

Retailer 9

$8,966 NZD

$5,045 USD

View

Retailer 10

$9,464 NZD

$5,325 USD

View

B+

Retailer 11

$9,571 NZD

$5,385 USD

View

Retailer 12

$9,571 NZD

$5,385 USD

View

Retailer 13

$9,738 NZD

$5,479 USD

View

Retailer 14

$9,801 NZD

A$8,484 AUD

View

Price last confirmed 23 days ago

Retailer 15

$10,028 NZD

$5,642 USD

View

B+

Retailer 16

$10,164 NZD

£4,503 GBP

View

Retailer 17

$10,305 NZD

£4,565 GBP

View

Retailer 18

$10,699 NZD

$6,020 USD

View

Retailer 19

$10,699 NZD

$6,020 USD

View

Retailer 20

$10,833 NZD

$6,095 USD

View

Retailer 21

$11,042 NZD

$6,213 USD

View

Retailer 22

$11,055 NZD

$6,220 USD

View

Retailer 23

$11,281 NZD

€6,045 EUR

View

Retailer 24

$12,979 NZD

ZAR 117,978 ZAR

View

Retailer 25

$15,304 NZD

$8,611 USD

View

Most Expensive

MOH London

23DAD2790 · Oct 29

$15,647 NZD

£6,932 GBP

View

25 more retailers have this diamond

Prices start from $7,989 NZDSave up to $7,658 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.

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B+

1.51ct Oval

$7,989 NZD