CaratHunter
Plans
Oval|Natural|GIA

1.51ct E SI2 Oval Natural Diamond

EX • E/SI2 • GIA 1513893618

Certificate GIA 1513893618

Diamond specifications and retailer prices

From $11,139 NZD
$6,256 USD
As of October 29, 2026
Save $8,206 NZD (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $23,205 NZD at NZ Jewellers · As of October 17, 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 E 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 1513893618. Listed at 15 retailers as of October 28, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1513893618
Dimensions9.25 × 6.61 × 4.04 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Needle
Top View
9.25 mm6.61 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1513893618
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.1%

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: Oct 29
Current: $12,521 NZD|Low: $10,681 NZD|High: $19,888 NZD|Avg: $14,460 NZD|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10$11,139 NZD
Retailer 9$11,872 NZD
Retailer 1$12,521 NZD
Retailer 2$12,569 NZD
Retailer 4$12,861 NZD
Retailer 11$13,461 NZD
Retailer 12$13,461 NZD
Retailer 8$13,924 NZD
Retailer 3$14,502 NZD
Retailer 6$14,532 NZD
Retailer 5$18,664 NZD
Retailer 7$19,345 NZD

42 data points across 12 retailers

15 retailers$11,139 NZD to $19,345 NZD

A
Cheapest Retailer
-
$11,139 NZD
$6,256 USD
Final sale: no returns
Retailer 2
-
$11,602 NZD
$6,516 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$11,872 NZD
$6,668 USD
View
A
Retailer 4
-
$12,521 NZD
£5,537 GBP
View
Retailer 5
-
$12,569 NZD
$7,059 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$12,763 NZD
$7,168 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$12,861 NZD
$7,223 USD
View
A
Retailer 8
-
$13,461 NZD
$7,560 USD
View
A
Retailer 9
-
$13,461 NZD
$7,560 USD
View
A
Retailer 10
-
$13,924 NZD
$7,820 USD
View
Retailer 11
-
$14,502 NZD
$8,145 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$14,532 NZD
€7,773 EUR
View
B+
Retailer 13
-
$18,664 NZD
£8,254 GBP
View
B+
Retailer 14
-
$19,345 NZD
£8,555 GBP
View
Most Expensive
NZ Jewellers
3c1a6dd0-fdfd-4ff3-be8c-4be33d216e7c · Oct 17
$23,205 NZD
$13,033 USD
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from $11,139 NZDSave up to $8,206 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
$11,139 NZD