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Oval|Natural|GIA

1.51ct E SI2 Oval Natural Diamond

ID • E/SI2 • GIA 6541240788

Certificate GIA 6541240788

Diamond specifications and retailer prices

From $7,033 AUD
HK$38,600 HKD
As of October 30, 2026
Save $7,117 AUD (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,642 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541240788. Listed at 20 retailers as of October 26, 2026, with a 101% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.35°
Pavilion angle36.93°
OriginNatural
Grading LabGIA
CertificateGIA 6541240788
Dimensions8.92 × 6.33 × 4.02 mm
L/W Ratio1.41
Top View
8.92 mm6.33 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541240788
Side View
Table 62.0%Crown 39.35°Girdle: STK-THKPavilion 36.93°Culet: NoneDepth 63.6%

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 30
Current: $8,839 AUD|Low: $7,033 AUD|High: $14,150 AUD|Avg: $9,175 AUD|-0.8%
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
October 30, 2026
Retailer 6$7,033 AUD
Retailer 2$7,389 AUD
Retailer 8$7,461 AUD
Retailer 4$7,609 AUD
Retailer 17$7,820 AUD
Retailer 16$7,886 AUD
Retailer 9$8,267 AUD
Retailer 14$8,314 AUD
Retailer 5$8,358 AUD
Retailer 1$8,839 AUD
Retailer 10$8,970 AUD
Retailer 7$9,706 AUD
Retailer 15$10,135 AUD
Retailer 13$10,203 AUD
Retailer 11$10,311 AUD
Retailer 12$13,853 AUD
Retailer 3$14,150 AUD

32 data points across 17 retailers

20 retailers$7,033 AUD to $14,150 AUD

A
Cheapest Retailer
-
$7,033 AUD
HK$38,600 HKD
A
Retailer 2
-
$7,389 AUD
$5,191 USD
View
A
Retailer 3
-
$7,609 AUD
$5,346 USD
View
A
Retailer 4
-
$7,820 AUD
$5,494 USD
View
Final sale: no returns
A
Retailer 5
-
$7,886 AUD
$5,540 USD
View
Retailer 6
-
$8,267 AUD
SGD 7,849 SGD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$8,314 AUD
SGD 7,893 SGD
View
A
Retailer 8
-
$8,358 AUD
$5,872 USD
View
A
Retailer 9
-
$8,839 AUD
£4,889 GBP
View
A
Retailer 10
-
$8,970 AUD
£4,962 GBP
View
A
Retailer 11
-
$9,281 AUD
$6,520 USD
View
Retailer 12
-
$9,352 AUD
$6,570 USD
View
Price last confirmed 28 days ago
Retailer 13
-
$9,496 AUD
$6,671 USD
View
Price last confirmed 30 days ago
A
Retailer 14
-
$9,706 AUD
$6,819 USD
View
A
Retailer 15
-
$10,135 AUD
$7,120 USD
View
A
Retailer 16
-
$10,203 AUD
€6,827 EUR
View
Retailer 17
-
$10,791 AUD
$7,581 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$13,853 AUD
£7,663 GBP
View
B
Retailer 19
-
$14,150 AUD
$9,941 USD
View
Most Expensive
NZ Jewellers
c1fcdd3b-bb6d-4228-b653-aa4a75263e19 · Sep 30
$15,642 AUD
$10,989 USD
View
Price last confirmed 29 days ago
19 more retailers have this diamond
Prices start from $7,033 AUDSave up to $7,117 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.

A
1.51ct Oval
$7,033 AUD