Oval|Natural|GIA

1.51ct E SI2 Oval Natural Diamond

ID • E/SI2 • GIA 6541240788

Certificate GIA 6541240788

Diamond specifications and retailer prices

From $4,941 USD
HK$38,600 HKD
As of October 29, 2026
Save $5,000 USD (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,989 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,302 USD|Low: $4,941 USD|High: $9,941 USD|Avg: $6,442 USD|-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$4,941 USD
Retailer 2$5,191 USD
Retailer 8$5,242 USD
Retailer 4$5,346 USD
Retailer 17$5,494 USD
Retailer 16$5,540 USD
Retailer 9$5,808 USD
Retailer 14$5,841 USD
Retailer 5$5,872 USD
Retailer 11$6,227 USD
Retailer 1$6,302 USD
Retailer 7$6,819 USD
Retailer 15$7,120 USD
Retailer 13$7,168 USD
Retailer 10$7,244 USD
Retailer 12$9,732 USD
Retailer 3$9,941 USD

32 data points across 17 retailers

20 retailers$4,941 USD to $9,941 USD

A
Cheapest Retailer
-
$4,941 USD
HK$38,600 HKD
A
Retailer 2
-
$5,191 USD
View
A
Retailer 3
-
$5,346 USD
View
A
Retailer 4
-
$5,494 USD
View
Final sale: no returns
A
Retailer 5
-
$5,540 USD
View
A
Retailer 6
-
$5,808 USD
SGD 7,849 SGD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$5,841 USD
SGD 7,893 SGD
View
A
Retailer 8
-
$5,872 USD
View
A
Retailer 9
-
$6,227 USD
£4,903 GBP
View
A
Retailer 10
-
$6,302 USD
£4,962 GBP
View
A
Retailer 11
-
$6,570 USD
View
Price last confirmed 28 days ago
A
Retailer 12
-
$6,671 USD
View
Price last confirmed 30 days ago
A
Retailer 13
-
$6,819 USD
View
A
Retailer 14
-
$7,120 USD
View
A
Retailer 15
-
$7,168 USD
€6,827 EUR
View
B+
Retailer 16
-
$7,244 USD
View
B+
Retailer 17
-
$7,581 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$9,732 USD
£7,663 GBP
View
B
Retailer 19
-
$9,941 USD
View
Most Expensive
B
NZ Jewellers
c1fcdd3b-bb6d-4228-b653-aa4a75263e19 · Sep 30
$10,989 USD
View
Price last confirmed 29 days ago
19 more retailers have this diamond
Prices start from $4,941 USDSave up to $5,000 USD

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
$4,941 USD