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Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 6532284793

Certificate GIA 6532284793

Diamond specifications and retailer prices

From $9,067 AUD
$6,369 USD
As of October 28, 2026
Save $10,129 AUD (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $19,196 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532284793. Listed at 24 retailers as of October 27, 2026, with prices from $9,067 to $19,196, a $10,129 spread on the same certified stone. NZ Jewellers lists it at $19,196. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.97°
OriginNatural
Grading LabGIA
CertificateGIA 6532284793
Dimensions9.06 × 6.43 × 3.94 mm
L/W Ratio1.41
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
9.06 mm6.43 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6532284793
Side View
Table 63.0%Crown 35.97°Girdle: STK-VTKPavilionCulet: NoneDepth 61.3%

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 28
Current: $19,196 AUD|Low: $8,798 AUD|High: $19,196 AUD|Avg: $11,683 AUD
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 29, 2026
Retailer 7$9,067 AUD
Retailer 10$9,138 AUD
Retailer 6$9,598 AUD
Retailer 20$9,598 AUD
Retailer 8$9,616 AUD
Retailer 9$9,678 AUD
Retailer 12$10,220 AUD
Retailer 11$10,340 AUD
Retailer 18$10,398 AUD
Retailer 19$10,557 AUD
Retailer 2$10,825 AUD
Retailer 13$10,877 AUD
Retailer 4$10,997 AUD
Retailer 5$11,004 AUD
Retailer 3$11,998 AUD
Retailer 15$12,523 AUD
Retailer 17$13,975 AUD
Retailer 14$16,080 AUD
Retailer 16$16,145 AUD
NZ Jewellers$19,196 AUD

23 data points across 20 retailers

24 retailers$9,067 AUD to $19,196 AUD

B+
Cheapest Retailer
-
$9,067 AUD
$6,369 USD
B+
Retailer 2
-
$9,138 AUD
$6,419 USD
View
B+
Retailer 3
-
$9,598 AUD
$6,742 USD
View
Final sale: no returns
B+
Retailer 4
-
$9,598 AUD
$6,742 USD
View
B+
Retailer 5
-
$9,616 AUD
$6,755 USD
View
B+
Retailer 6
-
$9,678 AUD
$6,798 USD
View
Retailer 7
-
$10,220 AUD
$7,179 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$10,340 AUD
$7,263 USD
View
B+
Retailer 9
-
$10,398 AUD
$7,304 USD
View
B
Retailer 10
-
$10,557 AUD
$7,416 USD
View
B+
Retailer 11
-
$10,825 AUD
£5,987 GBP
View
B+
Retailer 12
-
$10,877 AUD
£6,016 GBP
View
Retailer 13
-
$10,997 AUD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$11,004 AUD
$7,730 USD
View
B+
Retailer 15
-
$11,061 AUD
$7,770 USD
View
B+
Retailer 16
-
$11,061 AUD
$7,770 USD
View
B
Retailer 17
-
$11,432 AUD
$8,030 USD
View
B
Retailer 18
-
$11,612 AUD
$8,157 USD
View
B
Retailer 19
-
$11,998 AUD
$8,428 USD
View
B
Retailer 20
-
$12,523 AUD
€8,378 EUR
View
B
Retailer 21
-
$13,975 AUD
ZAR 158,584 ZAR
View
B
Retailer 22
-
$16,080 AUD
£8,894 GBP
View
B
Retailer 23
-
$16,145 AUD
£8,930 GBP
View
Most Expensive
B
NZ Jewellers
144cd5a2-b832-42d8-b70a-354daa8ffc92 · Oct 27
$19,196 AUD
$13,484 USD
View
23 more retailers have this diamond
Prices start from $9,067 AUDSave up to $10,129 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
$9,067 AUD