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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7241366322

Certificate GIA 7241366322

Diamond specifications and retailer prices

From $15,738 AUD
$11,055 USD
As of October 28, 2026
Save $14,042 AUD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $29,780 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7241366322. Listed at 19 retailers as of October 28, 2026, with prices from $15,738 to $29,780, a $14,042 spread on the same certified stone. NZ Jewellers lists it at $29,780. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7241366322
Dimensions8.92 × 6.60 × 4.02 mm
L/W Ratio1.35
Top View
8.92 mm6.60 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7241366322
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.0%

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: $29,780 AUD|Low: $15,738 AUD|High: $29,780 AUD|Avg: $21,543 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8$15,738 AUD
Retailer 3$17,869 AUD
Retailer 9$19,059 AUD
Retailer 4$19,068 AUD
Retailer 7$19,179 AUD
Retailer 10$19,357 AUD
Retailer 11$20,101 AUD
Retailer 2$21,493 AUD
Retailer 6$26,112 AUD
Retailer 5$28,056 AUD
NZ Jewellers$29,780 AUD

43 data points across 11 retailers

19 retailers$15,738 AUD to $29,780 AUD

B+
Cheapest Retailer
-
$15,738 AUD
$11,055 USD
B+
Retailer 2
-
$16,579 AUD
$11,646 USD
View
B+
Retailer 3
-
$16,598 AUD
$11,659 USD
View
B+
Retailer 4
-
$16,695 AUD
CA$16,288 CAD
View
B
Retailer 5
-
$17,581 AUD
$12,350 USD
View
B
Retailer 6
-
$17,869 AUD
$12,552 USD
View
B
Retailer 7
-
$19,059 AUD
$13,388 USD
View
B
Retailer 8
-
$19,068 AUD
£10,547 GBP
View
Retailer 9
-
$19,179 AUD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$19,357 AUD
$13,597 USD
View
B
Retailer 11
-
$20,101 AUD
$14,120 USD
View
B
Retailer 12
-
$20,543 AUD
$14,430 USD
View
B
Retailer 13
-
$20,543 AUD
$14,430 USD
View
B
Retailer 14
-
$20,703 AUD
$14,543 USD
View
B
Retailer 15
-
$21,226 AUD
$14,910 USD
View
B
Retailer 16
-
$21,493 AUD
€14,379 EUR
View
B
Retailer 17
-
$26,112 AUD
ZAR 296,315 ZAR
View
B
Retailer 18
-
$28,056 AUD
£15,518 GBP
View
Most Expensive
B
NZ Jewellers
8f6aceef-faf3-4bd8-b8b2-5eb04a828892 · Oct 30
$29,780 AUD
$20,919 USD
View
18 more retailers have this diamond
Prices start from $15,738 AUDSave up to $14,042 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
$15,738 AUD