CaratHunter
Plans
Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2566156295

Certificate GIA 2566156295

Diamond specifications and retailer prices

From $7,620 NZD
As of November 5, 2026
Save $6,176 NZD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,796 NZD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded I 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 2566156295. Listed at 13 retailers as of November 5, 2026, with prices from $7,620 to $13,796, a $6,176 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,796. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.24°
Pavilion angle39.43°
OriginNatural
Grading LabGIA
CertificateGIA 2566156295
Dimensions8.95 × 6.42 × 3.96 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.95 mm6.42 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566156295
Side View
Table 60.0%Crown 40.24°Girdle: MED-THKPavilion 39.43°Culet: NoneDepth 61.7%

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 5
Current: $9,748 NZD|Low: $7,620 NZD|High: $15,437 NZD|Avg: $9,753 NZD|-8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 6, 2026
Retailer 10$7,620 NZD
Retailer 7$7,836 NZD
Retailer 6$7,910 NZD
Retailer 8$8,045 NZD
Retailer 3$8,181 NZD
Retailer 4$8,210 NZD
Retailer 2$8,258 NZD
Retailer 5$8,475 NZD
Retailer 11$9,521 NZD
Retailer 12$9,543 NZD
Retailer 1$9,748 NZD
Retailer 9$12,763 NZD
Wholesale Diamonds Direct$13,796 NZD

33 data points across 13 retailers

13 retailers$7,620 NZD to $13,796 NZD

A
Cheapest Retailer
-
$7,620 NZD
A
Retailer 2
-
$7,836 NZD
View
A
Retailer 3
-
$7,910 NZD
View
A
Retailer 4
-
$8,045 NZD
View
A
Retailer 5
-
$8,181 NZD
View
A
Retailer 6
-
$8,210 NZD
View
A
Retailer 7
-
$8,258 NZD
View
A
Retailer 8
-
$8,475 NZD
View
A
Retailer 9
-
$9,521 NZD
View
A
Retailer 10
-
$9,543 NZD
View
A
Retailer 11
-
$9,748 NZD
View
B+
Retailer 12
-
$12,763 NZD
View
Most Expensive
B+
Wholesale Diamonds Direct
579393277 · Nov 6
$13,796 NZD
$7,648 USD
View
12 more retailers have this diamond
Prices start from $7,620 NZDSave up to $6,176 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
$7,620 NZD