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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6532997591

Certificate GIA 6532997591

Diamond specifications and retailer prices

From $8,655 AUD
$6,080 USD
As of October 28, 2026
Save $9,669 AUD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,325 AUD at NZ Jewellers · As of October 27, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532997591. Listed at 16 retailers as of October 27, 2026, with prices from $8,655 to $18,325, a $9,669 spread on the same certified stone. NZ Jewellers lists it at $18,325. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532997591
Dimensions9.32 × 6.46 × 3.99 mm
L/W Ratio1.44
Top View
9.32 mm6.46 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532997591
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $18,325 AUD|Low: $8,271 AUD|High: $18,585 AUD|Avg: $11,543 AUD|-1.4%
NZ Jewellers
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 29, 2026
Retailer 14$8,271 AUD
Retailer 5$8,655 AUD
Retailer 7$9,162 AUD
Retailer 4$9,239 AUD
Retailer 15$9,925 AUD
Retailer 3$10,079 AUD
Retailer 16$10,278 AUD
Retailer 11$10,283 AUD
Retailer 10$10,746 AUD
Retailer 6$11,004 AUD
Retailer 12$11,004 AUD
Retailer 13$11,375 AUD
Retailer 8$11,453 AUD
Retailer 9$11,954 AUD
Retailer 2$15,351 AUD
NZ Jewellers$18,325 AUD

38 data points across 16 retailers

16 retailers$8,655 AUD to $18,325 AUD

Retailer 1
-
$8,271 AUD
$5,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$8,655 AUD
$6,080 USD
View
Retailer 3
-
$9,162 AUD
$6,436 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$9,239 AUD
$6,490 USD
View
Retailer 5
-
$9,925 AUD
$6,972 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$10,079 AUD
$7,080 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$10,278 AUD
$7,220 USD
View
B+
Retailer 8
-
$10,283 AUD
£5,688 GBP
View
B+
Retailer 9
-
$10,746 AUD
£5,944 GBP
View
B
Retailer 10
-
$11,004 AUD
$7,730 USD
View
B
Retailer 11
-
$11,004 AUD
$7,730 USD
View
B
Retailer 12
-
$11,375 AUD
$7,990 USD
View
B
Retailer 13
-
$11,453 AUD
$8,045 USD
View
B
Retailer 14
-
$11,954 AUD
€7,997 EUR
View
B
Retailer 15
-
$15,351 AUD
£8,491 GBP
View
Most Expensive
B
NZ Jewellers
592d6834-35f2-400e-9273-b620af258013 · Oct 27
$18,325 AUD
$12,872 USD
View
15 more retailers have this diamond
Prices start from $8,655 AUDSave up to $9,669 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
$8,655 AUD