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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

M/SI1 • GIA 5231782704

Certificate GIA 5231782704

Diamond specifications and retailer prices

From $3,395 NZD
As of November 6, 2026
Save $1,465 NZD (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,860 NZD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 5231782704. Listed at 2 retailers as of November 6, 2026, with prices from $3,395 to $4,860, a $1,465 spread on the same certified stone. Yorxs lists it at $4,860. 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
M
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5231782704
Dimensions8.86 × 6.32 × 3.97 mm
L/W Ratio1.40
Top View
8.86 mm6.32 mm1.51 ctM / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5231782704
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.8%

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 6
Current: $3,395 NZD|Low: $3,198 NZD|High: $5,144 NZD|Avg: $4,100 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 4$3,198 NZD
Retailer 1$3,395 NZD
Retailer 2$4,086 NZD
Yorxs$4,860 NZD
Retailer 3$4,964 NZD

15 data points across 5 retailers

2 retailers$3,395 NZD to $4,860 NZD

B+
Cheapest Retailer
-
$3,395 NZD
Most Expensive
B
Yorxs
516040235 · Nov 6
$4,860 NZD
€2,566 EUR
View
1 more retailer has this diamond
Prices start from $3,395 NZDSave up to $1,465 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 Oval
$3,395 NZD