Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1538876897

Certificate GIA 1538876897

Diamond specifications and retailer prices

From $12,507 AUD
£6,919 GBP
As of October 29, 2026
Save $6,114 AUD (33%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $22,680 AUD 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: $12,507 AUD|Low: $11,494 AUD|High: $18,746 AUD|Avg: $14,091 AUD|-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$11,494 AUD
Retailer 1$12,507 AUD
Retailer 11$12,517 AUD
Retailer 8$12,523 AUD
Retailer 6$12,554 AUD
Retailer 7$13,636 AUD
Retailer 3$13,864 AUD
Retailer 5$14,796 AUD
Retailer 2$15,646 AUD
Retailer 9$16,365 AUD
Retailer 4$18,621 AUD

34 data points across 11 retailers

16 retailers$12,507 AUD to $18,621 AUD

Retailer 1
-
$7,124 AUD
HK$39,100 HKD
Price last confirmed 43 days ago
Retailer 2
-
$8,734 AUD
$6,136 USD
View
Price last confirmed 109 days ago
Retailer 3
-
$11,494 AUD
$8,075 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$12,507 AUD
£6,919 GBP
View
Retailer 5
-
$12,517 AUD
$8,794 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$12,523 AUD
View
B+
Retailer 7
-
$12,554 AUD
£6,944 GBP
View
Retailer 8
-
$13,561 AUD
$9,527 USD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$13,636 AUD
$9,580 USD
View
Retailer 10
-
$13,769 AUD
$9,673 USD
View
Price last confirmed 30 days ago
B
Retailer 11
-
$13,864 AUD
$9,740 USD
View
B+
Retailer 12
-
$14,796 AUD
€9,900 EUR
View
Retailer 13
-
$15,646 AUD
$10,992 USD
View
Price last confirmed 21 days ago
Retailer 14
-
$16,365 AUD
ZAR 185,736 ZAR
View
Price last confirmed 7 days ago
B
Retailer 15
-
$18,621 AUD
£10,301 GBP
View
Most Expensive
NZ Jewellers
0809eb5b-736f-48bd-a394-257f4faa97f0 · Sep 30
$22,680 AUD
$15,934 USD
View
Price last confirmed 29 days ago
15 more retailers have this diamond
Prices start from $12,507 AUDSave up to $6,114 AUD

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
$12,507 AUD