Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1559169538

Certificate GIA 1559169538

Diamond specifications and retailer prices

From $6,336 USD
As of October 27, 2026
15 retailers carry this diamond
Most expensive: $12,672 USD at NZ Jewellers · As of October 9, 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 1559169538. Listed at 15 retailers as of October 27, 2026. 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
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.8°
Pavilion angle36.2°
OriginNatural
Grading LabGIA
CertificateGIA 1559169538
Dimensions8.69 × 6.48 × 4.07 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.69 mm6.48 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559169538
Side View
Table 61.0%Crown 39.8°Girdle: MED-THKPavilion 36.2°Culet: NDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $7,615 USD|Low: $5,540 USD|High: $11,240 USD|Avg: $7,394 USD|+1.4%
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
October 16, 2026
Retailer 10$5,540 USD
Retailer 16$5,619 USD
Retailer 5$5,986 USD
Retailer 3$6,093 USD
Retailer 15$6,336 USD
Retailer 11$6,360 USD
Retailer 8$7,511 USD
Retailer 1$7,615 USD
Retailer 6$7,620 USD
Retailer 13$7,620 USD
Retailer 4$7,722 USD
Retailer 7$7,870 USD
Retailer 14$8,245 USD
Retailer 2$8,425 USD
Retailer 12$9,201 USD
Retailer 9$10,672 USD

27 data points across 16 retailers

15 retailers

A
Retailer 1
-
$5,540 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$5,619 USD
HK$43,900 HKD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$5,986 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
$6,093 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$6,336 USD
View
Final sale: no returns
A
Retailer 6
-
$6,336 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$6,864 USD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$7,092 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$7,511 USD
A$11,555 AUD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
$7,615 USD
£5,996 GBP
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$7,722 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$7,920 USD
View
Price last confirmed 20 days ago
B
Retailer 13
-
$9,201 USD
ZAR 148,646 ZAR
View
Price last confirmed 17 days ago
B
Retailer 14
-
$10,672 USD
£8,403 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
NZ Jewellers
40ddab6c-7117-4ba7-8e3c-2fc771f8aefa · Oct 9
$12,672 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $6,336 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
$6,336 USD