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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 5533751663

Certificate GIA 5533751663

Diamond specifications and retailer prices

From $5,868 AUD
HK$32,200 HKD
As of November 1, 2026
Save $7,513 AUD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,380 AUD at NZ Jewellers · As of October 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5533751663. Listed at 16 retailers as of October 30, 2026, with prices from $5,868 to $13,380, a $7,513 spread on the same certified stone. NZ Jewellers lists it at $13,380. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.92°
Pavilion angle33.06°
OriginNatural
Grading LabGIA
CertificateGIA 5533751663
Dimensions8.93 × 6.05 × 3.79 mm
L/W Ratio1.48
Top View
8.93 mm6.05 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5533751663
Side View
Table 55.0%Crown 38.92°Girdle: Extremely ThickPavilion 33.06°Culet: NoneDepth 62.6%

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: Nov 1
Current: $7,804 AUD|Low: $5,868 AUD|High: $12,896 AUD|Avg: $8,241 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$5,868 AUD
Retailer 7$6,541 AUD
Retailer 8$6,863 AUD
Retailer 2$7,169 AUD
Retailer 9$7,383 AUD
Retailer 4$7,528 AUD
Retailer 1$7,804 AUD
Retailer 10$8,001 AUD
Retailer 6$9,055 AUD
Retailer 3$12,743 AUD

41 data points across 10 retailers

16 retailers$5,868 AUD to $13,380 AUD

A
Cheapest Retailer
-
$5,868 AUD
HK$32,200 HKD
B+
Retailer 2
-
$6,541 AUD
$4,595 USD
View
A
Retailer 3
-
$6,863 AUD
SGD 6,515 SGD
View
B+
Retailer 4
-
$6,977 AUD
$4,901 USD
View
B+
Retailer 5
-
$7,169 AUD
$5,036 USD
View
B+
Retailer 6
-
$7,383 AUD
$5,186 USD
View
Final sale: no returns
B+
Retailer 7
-
$7,457 AUD
SGD 7,079 SGD
View
B+
Retailer 8
-
$7,528 AUD
£4,164 GBP
View
B+
Retailer 9
-
$7,804 AUD
£4,316 GBP
View
B+
Retailer 10
-
$8,001 AUD
$5,620 USD
View
B+
Retailer 11
-
$8,001 AUD
$5,620 USD
View
B+
Retailer 12
-
$8,063 AUD
$5,664 USD
View
B+
Retailer 13
-
$9,055 AUD
€6,058 EUR
View
B
Retailer 14
-
$9,231 AUD
$6,484 USD
View
B
Retailer 15
-
$12,743 AUD
£7,048 GBP
View
Most Expensive
B
NZ Jewellers
e9dd5e77-face-4b88-975f-e76e30e91dc7 · Oct 30
$13,380 AUD
$9,399 USD
View
15 more retailers have this diamond
Prices start from $5,868 AUDSave up to $7,513 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
$5,868 AUD