Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1538876897

Certificate GIA 1538876897

Diamond specifications and retailer prices

From $15,590 NZD
£6,919 GBP
As of October 29, 2026
Save $7,622 NZD (33%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $28,272 NZD at NZ Jewellers · As of September 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1538876897. Listed at 16 retailers as of October 29, 2026, with a 49% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1538876897
Dimensions8.69 × 6.16 × 3.94 mm
L/W Ratio1.41
Cert comments
Pinpoints are not shown.
Key to symbols
Crystal, Feather
Top View
8.69 mm6.16 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538876897
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $15,590 NZD|Low: $14,327 NZD|High: $23,367 NZD|Avg: $17,564 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
October 29, 2026
Retailer 10$14,327 NZD
Retailer 1$15,590 NZD
Retailer 11$15,603 NZD
Retailer 8$15,610 NZD
Retailer 6$15,648 NZD
Retailer 7$16,998 NZD
Retailer 3$17,281 NZD
Retailer 5$18,444 NZD
Retailer 2$19,503 NZD
Retailer 9$20,399 NZD
Retailer 4$23,212 NZD

34 data points across 11 retailers

16 retailers$15,590 NZD to $23,212 NZD

Retailer 1
-
$8,880 NZD
HK$39,100 HKD
Price last confirmed 43 days ago
Retailer 2
-
$10,887 NZD
$6,136 USD
View
Price last confirmed 110 days ago
Retailer 3
-
$14,327 NZD
$8,075 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$15,590 NZD
£6,919 GBP
View
Retailer 5
-
$15,603 NZD
$8,794 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$15,610 NZD
A$13,535 AUD
View
B+
Retailer 7
-
$15,648 NZD
£6,944 GBP
View
Retailer 8
-
$16,904 NZD
$9,527 USD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$16,998 NZD
$9,580 USD
View
Retailer 10
-
$17,163 NZD
$9,673 USD
View
Price last confirmed 30 days ago
B
Retailer 11
-
$17,281 NZD
$9,740 USD
View
B+
Retailer 12
-
$18,444 NZD
€9,900 EUR
View
Retailer 13
-
$19,503 NZD
$10,992 USD
View
Price last confirmed 21 days ago
Retailer 14
-
$20,399 NZD
ZAR 185,736 ZAR
View
Price last confirmed 8 days ago
B
Retailer 15
-
$23,212 NZD
£10,301 GBP
View
Most Expensive
NZ Jewellers
0809eb5b-736f-48bd-a394-257f4faa97f0 · Sep 30
$28,272 NZD
$15,934 USD
View
Price last confirmed 30 days ago
15 more retailers have this diamond
Prices start from $15,590 NZDSave up to $7,622 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.

B+
1.51ct Oval
$15,590 NZD