Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6542847978

Certificate GIA 6542847978

Diamond specifications and retailer prices

From $11,641 AUD
CA$11,357 CAD
As of October 30, 2026
Save $2,084 AUD (15%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $22,325 AUD at NZ Jewellers · As of October 17, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542847978. Listed at 14 retailers as of October 30, 2026, with a relatively tight 18% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.65°
OriginNatural
Grading LabGIA
CertificateGIA 6542847978
Dimensions9.37 × 6.18 × 3.92 mm
L/W Ratio1.52
Top View
9.37 mm6.18 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542847978
Side View
Table 60.0%Crown 37.65°Girdle: MediumPavilionCulet: NoneDepth 63.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $22,325 AUD|Low: $10,179 AUD|High: $22,325 AUD|Avg: $13,065 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 18, 2026
Retailer 12$10,179 AUD
Retailer 10$10,307 AUD
Retailer 18$10,452 AUD
Retailer 11$11,117 AUD
Retailer 20$11,162 AUD
Retailer 16$11,255 AUD
Retailer 4$11,641 AUD
Retailer 9$11,895 AUD
Retailer 7$12,093 AUD
Retailer 15$12,279 AUD
Retailer 5$12,306 AUD
Retailer 2$12,605 AUD
Retailer 14$12,643 AUD
Retailer 17$13,653 AUD
Retailer 6$13,725 AUD
Retailer 3$13,953 AUD
Retailer 19$14,534 AUD
Retailer 8$15,912 AUD
Retailer 13$18,702 AUD
NZ Jewellers$22,325 AUD

7 data points across 20 retailers

14 retailers$11,641 AUD to $13,725 AUD

Retailer 1
-
$10,452 AUD
$7,342 USD
Price last confirmed 13 days ago
Retailer 2
-
$11,255 AUD
$7,906 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$11,641 AUD
CA$11,357 CAD
View
Retailer 4
-
$11,895 AUD
$8,355 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$12,093 AUD
$8,495 USD
View
Price last confirmed 43 days ago
Retailer 6
-
$12,279 AUD
$8,625 USD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$12,306 AUD
$8,644 USD
View
Retailer 8
-
$12,605 AUD
£6,972 GBP
View
Price last confirmed 13 days ago
Retailer 9
-
$12,643 AUD
£6,993 GBP
View
Price last confirmed 14 days ago
Retailer 10
-
$13,653 AUD
$9,591 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$13,725 AUD
$9,641 USD
View
Retailer 12
-
$13,953 AUD
$9,801 USD
View
Price last confirmed 15 days ago
Retailer 13
-
$18,702 AUD
£10,344 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
5b264ece-8da7-4fa6-885f-55eb54d99b0c · Oct 17
$22,325 AUD
$15,682 USD
View
Price last confirmed 14 days ago
13 more retailers have this diamond
Prices start from $11,641 AUDSave up to $2,084 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
$11,641 AUD