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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 $8,797 NZD
HK$38,600 HKD
As of October 29, 2026
Save $8,903 NZD (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $19,566 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 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 29
Current: $11,220 NZD|Low: $8,797 NZD|High: $17,700 NZD|Avg: $11,471 NZD|-0.6%
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 29, 2026
Retailer 6$8,797 NZD
Retailer 2$9,243 NZD
Retailer 8$9,333 NZD
Retailer 4$9,519 NZD
Retailer 17$9,782 NZD
Retailer 16$9,864 NZD
Retailer 9$10,342 NZD
Retailer 14$10,400 NZD
Retailer 5$10,455 NZD
Retailer 11$11,087 NZD
Retailer 1$11,220 NZD
Retailer 7$12,141 NZD
Retailer 15$12,677 NZD
Retailer 13$12,763 NZD
Retailer 10$12,898 NZD
Retailer 12$17,328 NZD
Retailer 3$17,700 NZD

32 data points across 17 retailers

20 retailers$8,797 NZD to $17,700 NZD

A
Cheapest Retailer
-
$8,797 NZD
HK$38,600 HKD
A
Retailer 2
-
$9,243 NZD
$5,191 USD
View
A
Retailer 3
-
$9,519 NZD
$5,346 USD
View
A
Retailer 4
-
$9,782 NZD
$5,494 USD
View
Final sale: no returns
A
Retailer 5
-
$9,864 NZD
$5,540 USD
View
Retailer 6
-
$10,342 NZD
SGD 7,849 SGD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$10,400 NZD
SGD 7,893 SGD
View
A
Retailer 8
-
$10,455 NZD
$5,872 USD
View
A
Retailer 9
-
$11,087 NZD
£4,903 GBP
View
A
Retailer 10
-
$11,220 NZD
£4,962 GBP
View
Retailer 11
-
$11,698 NZD
$6,570 USD
View
Price last confirmed 28 days ago
Retailer 12
-
$11,878 NZD
$6,671 USD
View
Price last confirmed 30 days ago
A
Retailer 13
-
$12,141 NZD
$6,819 USD
View
A
Retailer 14
-
$12,677 NZD
$7,120 USD
View
A
Retailer 15
-
$12,763 NZD
€6,827 EUR
View
B+
Retailer 16
-
$12,898 NZD
$7,244 USD
View
Retailer 17
-
$13,498 NZD
$7,581 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$17,328 NZD
£7,663 GBP
View
B
Retailer 19
-
$17,700 NZD
$9,941 USD
View
Most Expensive
NZ Jewellers
c1fcdd3b-bb6d-4228-b653-aa4a75263e19 · Sep 30
$19,566 NZD
$10,989 USD
View
Price last confirmed 29 days ago
19 more retailers have this diamond
Prices start from $8,797 NZDSave up to $8,903 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
$8,797 NZD