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Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 6565552279

Certificate GIA 6565552279

Diamond specifications and retailer prices

From $11,118 AUD
SGD 10,554 SGD
As of October 30, 2026
Save $8,809 AUD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $19,928 AUD at With Clarity · As of October 30, 2026
View at With Clarity

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 6565552279. Listed at 15 retailers as of October 30, 2026, with prices from $11,118 to $19,928, a $8,809 spread on the same certified stone. With Clarity lists it at $19,928. 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
FluorescenceFaint
Crown angle37.6°
Pavilion angle37.96°
OriginNatural
Grading LabGIA
CertificateGIA 6565552279
Dimensions9.42 × 6.33 × 3.80 mm
L/W Ratio1.49
Culet sizeNone
Top View
9.42 mm6.33 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565552279
Side View
Table 58.0%Crown 37.6°Girdle: STK-THKPavilion 37.96°Culet: NoneDepth 60.1%

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 30
Current: $16,391 AUD|Low: $11,118 AUD|High: $19,928 AUD|Avg: $13,837 AUD
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
With Clarity
October 30, 2026
Retailer 5$11,118 AUD
Retailer 3$11,769 AUD
Retailer 13$11,823 AUD
Retailer 8$12,086 AUD
Retailer 9$12,236 AUD
Retailer 2$12,405 AUD
Retailer 6$12,639 AUD
Retailer 4$14,274 AUD
Retailer 10$14,410 AUD
Retailer 7$14,727 AUD
Retailer 12$14,738 AUD
Retailer 1$16,391 AUD
Retailer 11$18,051 AUD
With Clarity$19,928 AUD

20 data points across 14 retailers

15 retailers$11,118 AUD to $19,928 AUD

B+
Cheapest Retailer
-
$11,118 AUD
SGD 10,554 SGD
B+
Retailer 2
-
$11,769 AUD
$8,267 USD
View
B+
Retailer 3
-
$11,823 AUD
$8,305 USD
View
B+
Retailer 4
-
$12,037 AUD
SGD 11,426 SGD
View
Retailer 5
-
$12,086 AUD
$8,490 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$12,236 AUD
$8,595 USD
View
B+
Retailer 7
-
$12,405 AUD
$8,714 USD
View
B+
Retailer 8
-
$12,639 AUD
£6,991 GBP
View
B
Retailer 9
-
$14,274 AUD
$10,027 USD
View
B
Retailer 10
-
$14,410 AUD
$10,122 USD
View
B+
Retailer 11
-
$14,727 AUD
€9,852 EUR
View
B+
Retailer 12
-
$14,738 AUD
$10,353 USD
View
B
Retailer 13
-
$16,391 AUD
$11,514 USD
View
B
Retailer 14
-
$18,051 AUD
$12,680 USD
View
Most Expensive
B
With Clarity
6565552279 · Oct 30
$19,928 AUD
$13,998 USD
View
14 more retailers have this diamond
Prices start from $11,118 AUDSave up to $8,809 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
$11,118 AUD