Oval|Natural|GIA

1.50ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1557028814

Certificate GIA 1557028814

Diamond specifications and retailer prices

From $13,114 NZD
$7,361 USD
As of October 27, 2026
Save $10,511 NZD (44%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $27,200 NZD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557028814. Listed at 24 retailers as of October 27, 2026, with a 80% 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.45°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1557028814
Dimensions8.82 × 6.34 × 4.07 mm
L/W Ratio1.39
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
8.82 mm6.34 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557028814
Side View
Table 58.0%Crown 39.45°Girdle: THK-VTKPavilion 40.6°Culet: NoneDepth 64.2%

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 27
Current: $15,691 NZD|Low: $12,467 NZD|High: $23,625 NZD|Avg: $16,044 NZD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 29, 2026
Retailer 3$13,114 NZD
Retailer 7$13,203 NZD
Retailer 20$13,404 NZD
Retailer 4$13,572 NZD
Retailer 14$13,600 NZD
Retailer 6$14,047 NZD
Retailer 11$14,101 NZD
Retailer 18$15,027 NZD
Retailer 2$15,638 NZD
Retailer 1$15,691 NZD
Retailer 9$15,755 NZD
Retailer 12$15,869 NZD
Retailer 19$15,899 NZD
Retailer 8$16,728 NZD
Retailer 22$16,728 NZD
Retailer 10$16,866 NZD
Retailer 13$17,079 NZD
Retailer 5$17,298 NZD
Retailer 17$17,488 NZD
Retailer 21$20,349 NZD
Retailer 15$21,187 NZD
Retailer 16$23,625 NZD

23 data points across 22 retailers

24 retailers$13,114 NZD to $23,625 NZD

A
Cheapest Retailer
-
$13,114 NZD
$7,361 USD
A
Retailer 2
-
$13,203 NZD
$7,411 USD
View
A
Retailer 3
-
$13,404 NZD
$7,524 USD
View
B+
Retailer 4
-
$13,572 NZD
$7,618 USD
View
B+
Retailer 5
-
$14,047 NZD
$7,885 USD
View
B+
Retailer 6
-
$14,101 NZD
$7,915 USD
View
Final sale: no returns
B+
Retailer 7
-
$14,733 NZD
$8,270 USD
View
Price last confirmed 27 days ago
B+
Retailer 8
-
$14,961 NZD
$8,398 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$15,027 NZD
$8,435 USD
View
B+
Retailer 10
-
$15,638 NZD
$8,778 USD
View
B+
Retailer 11
-
$15,691 NZD
£6,935 GBP
View
B+
Retailer 12
-
$15,755 NZD
$8,844 USD
View
B+
Retailer 13
-
$15,869 NZD
£7,014 GBP
View
B+
Retailer 14
-
$15,899 NZD
A$13,730 AUD
View
B+
Retailer 15
-
$16,728 NZD
$9,390 USD
View
B+
Retailer 16
-
$16,728 NZD
$9,390 USD
View
B+
Retailer 17
-
$16,866 NZD
$9,468 USD
View
B+
Retailer 18
-
$17,001 NZD
$9,543 USD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$17,079 NZD
$9,587 USD
View
B
Retailer 20
-
$17,298 NZD
$9,710 USD
View
B+
Retailer 21
-
$17,488 NZD
€9,349 EUR
View
B
Retailer 22
-
$20,349 NZD
ZAR 184,534 ZAR
View
B
Retailer 23
-
$23,625 NZD
£10,442 GBP
View
Most Expensive
B
NZ Jewellers
0ae8fe05-5ac0-4661-bf0e-40c4806507ce · Sep 29
$27,200 NZD
$15,268 USD
View
Price last confirmed 30 days ago
23 more retailers have this diamond
Prices start from $13,114 NZDSave up to $10,511 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
1.50ct Oval
$13,114 NZD