Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 5523685084

Certificate GIA 5523685084

Diamond specifications and retailer prices

From $11,911 NZD
$6,713 USD
As of October 30, 2026
Save $13,533 NZD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $25,443 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5523685084. Listed at 19 retailers as of October 30, 2026, with prices from $11,911 to $25,443, a $13,533 spread on the same certified stone. NZ Jewellers lists it at $25,443. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.45°
Pavilion angle39.69°
OriginNatural
Grading LabGIA
CertificateGIA 5523685084
Dimensions8.96 × 6.47 × 3.99 mm
L/W Ratio1.38
Top View
8.96 mm6.47 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5523685084
Side View
Table 60.0%Crown 39.45°Girdle: MED-THKPavilion 39.69°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $25,443 NZD|Low: $11,911 NZD|High: $25,443 NZD|Avg: $16,185 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$11,911 NZD
Retailer 9$12,722 NZD
Retailer 3$13,550 NZD
Retailer 7$13,781 NZD
Retailer 8$13,994 NZD
Retailer 4$14,172 NZD
Retailer 10$15,901 NZD
Retailer 5$16,624 NZD
Retailer 11$18,134 NZD
Retailer 2$21,200 NZD
NZ Jewellers$25,443 NZD

41 data points across 11 retailers

19 retailers$11,911 NZD to $25,443 NZD

A
Cheapest Retailer
-
$11,911 NZD
$6,713 USD
A
Retailer 2
-
$12,722 NZD
$7,170 USD
View
A
Retailer 3
-
$12,828 NZD
$7,230 USD
View
B+
Retailer 4
-
$13,550 NZD
$7,637 USD
View
Retailer 5
-
$13,781 NZD
$7,767 USD
View
Price last confirmed 33 days ago
B+
Retailer 6
-
$13,781 NZD
$7,767 USD
View
B+
Retailer 7
-
$13,994 NZD
$7,887 USD
View
A
Retailer 8
-
$14,172 NZD
£6,289 GBP
View
Retailer 9
-
$15,901 NZD
$8,962 USD
View
Price last confirmed 61 days ago
Retailer 10
-
$15,901 NZD
$8,962 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$15,901 NZD
$8,962 USD
View
B+
Retailer 12
-
$15,969 NZD
$9,000 USD
View
B+
Retailer 13
-
$15,969 NZD
$9,000 USD
View
B+
Retailer 14
-
$16,501 NZD
$9,300 USD
View
B+
Retailer 15
-
$16,624 NZD
€8,923 EUR
View
B
Retailer 16
-
$21,200 NZD
£9,408 GBP
View
Retailer 17
-
$25,443 NZD
$14,340 USD
View
Price last confirmed 62 days ago
Retailer 18
-
$25,443 NZD
$14,340 USD
View
Price last confirmed 34 days ago
Most Expensive
B
NZ Jewellers
7d405e4f-bf1f-46b4-b4d2-295327d99e14 · Oct 30
$25,443 NZD
$14,340 USD
View
18 more retailers have this diamond
Prices start from $11,911 NZDSave up to $13,533 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
$11,911 NZD