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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 1565816905

Certificate GIA 1565816905

Diamond specifications and retailer prices

From $3,763 NZD
As of November 6, 2026
Save $2,122 NZD (36%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,885 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), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565816905. Listed at 6 retailers as of November 6, 2026, with prices from $3,763 to $5,885, a $2,122 spread on the same certified stone. Yorxs lists it at $5,885. 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
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1565816905
Dimensions10.06 × 6.07 × 3.61 mm
L/W Ratio1.66
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
10.06 mm6.07 mm1.51 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1565816905
Side View
Table 55.0%CrownGirdlePavilionCulet: NoneDepth 59.5%

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 6
Current: $3,763 NZD|Low: $3,763 NZD|High: $5,885 NZD|Avg: $5,082 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 6, 2026
Retailer 1$3,763 NZD
Retailer 4$4,526 NZD
Retailer 2$5,036 NZD
Retailer 3$5,309 NZD
Retailer 5$5,832 NZD
Yorxs$5,885 NZD

2 data points across 6 retailers

6 retailers$3,763 NZD to $5,885 NZD

A
Cheapest Retailer
-
$3,763 NZD
B+
Retailer 2
-
$4,526 NZD
View
B+
Retailer 3
-
$5,036 NZD
View
B
Retailer 4
-
$5,309 NZD
View
B
Retailer 5
-
$5,832 NZD
View
Most Expensive
B
Yorxs
529ABC550 · Nov 6
$5,885 NZD
€3,107 EUR
View
5 more retailers have this diamond
Prices start from $3,763 NZDSave up to $2,122 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 Oval
$3,763 NZD