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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6552772597

Certificate GIA 6552772597

Diamond specifications and retailer prices

From $9,831 AUD
$6,890 USD
As of October 28, 2026
Save $7,906 AUD (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,737 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded G 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 6552772597. Listed at 19 retailers as of October 28, 2026, with prices from $9,831 to $17,737, a $7,906 spread on the same certified stone. MOH London lists it at $17,737. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.58°
Pavilion angle39.55°
OriginNatural
Grading LabGIA
CertificateGIA 6552772597
Dimensions8.93 × 6.39 × 4.00 mm
L/W Ratio1.40
Culet sizeNone
Top View
8.93 mm6.39 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552772597
Side View
Table 59.0%Crown 39.58°Girdle: STK-THKPavilion 39.55°Culet: NoneDepth 62.6%

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: $17,737 AUD|Low: $7,956 AUD|High: $17,737 AUD|Avg: $10,860 AUD
MOH London
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 5$7,956 AUD
Retailer 12$9,022 AUD
Retailer 11$9,413 AUD
Retailer 7$9,566 AUD
Retailer 17$9,831 AUD
Retailer 8$9,920 AUD
Retailer 13$10,048 AUD
Retailer 19$10,173 AUD
Retailer 15$10,585 AUD
Retailer 10$11,551 AUD
Retailer 2$11,722 AUD
Retailer 20$11,818 AUD
Retailer 14$11,998 AUD
Retailer 3$12,614 AUD
Retailer 18$12,614 AUD
Retailer 9$12,785 AUD
Retailer 4$13,028 AUD
Retailer 16$13,108 AUD
Retailer 6$15,234 AUD
MOH London$17,737 AUD

31 data points across 20 retailers

19 retailers$9,831 AUD to $17,737 AUD

Retailer 1
-
$7,956 AUD
SGD 7,535 SGD
Price last confirmed 11 days ago
Retailer 2
-
$9,022 AUD
SGD 8,544 SGD
View
Price last confirmed 18 days ago
Retailer 3
-
$9,413 AUD
$6,597 USD
View
Price last confirmed 19 days ago
Retailer 4
-
$9,566 AUD
$6,704 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$9,831 AUD
$6,890 USD
View
B+
Retailer 6
-
$9,864 AUD
View
Retailer 7
-
$9,920 AUD
£5,474 GBP
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$10,048 AUD
$7,042 USD
View
B+
Retailer 9
-
$10,173 AUD
$7,129 USD
View
B+
Retailer 10
-
$10,585 AUD
$7,418 USD
View
Final sale: no returns
Retailer 11
-
$11,551 AUD
$8,095 USD
View
Price last confirmed 18 days ago
B+
Retailer 12
-
$11,722 AUD
$8,215 USD
View
B
Retailer 13
-
$11,818 AUD
$8,282 USD
View
B
Retailer 14
-
$11,998 AUD
£6,621 GBP
View
B+
Retailer 15
-
$12,614 AUD
$8,840 USD
View
B+
Retailer 16
-
$12,614 AUD
$8,840 USD
View
B+
Retailer 17
-
$13,028 AUD
$9,130 USD
View
B
Retailer 18
-
$13,108 AUD
€8,749 EUR
View
Most Expensive
B
MOH London
F89BBB7F4 · Oct 29
$17,737 AUD
£9,788 GBP
View
18 more retailers have this diamond
Prices start from $9,831 AUDSave up to $7,906 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
$9,831 AUD