CaratHunter
Plans
Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5536737558

Certificate GIA 5536737558

Diamond specifications and retailer prices

From $9,192 AUD
$6,457 USD
As of October 31, 2026
Save $11,518 AUD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $20,711 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 G 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 5536737558. Listed at 25 retailers as of October 30, 2026, with prices from $9,192 to $20,711, a $11,518 spread on the same certified stone. NZ Jewellers lists it at $20,711. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5536737558
Dimensions8.80 × 6.37 × 4.11 mm
L/W Ratio1.38
Top View
8.80 mm6.37 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5536737558
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.5%

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 31
Current: $13,528 AUD|Low: $9,192 AUD|High: $17,465 AUD|Avg: $12,147 AUD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8$9,192 AUD
Retailer 5$9,908 AUD
Retailer 6$11,392 AUD
Retailer 2$11,444 AUD
Retailer 7$11,584 AUD
Retailer 4$11,997 AUD
Retailer 1$13,528 AUD
Retailer 3$17,257 AUD

41 data points across 8 retailers

25 retailers$9,192 AUD to $20,711 AUD

B+
Cheapest Retailer
-
$9,192 AUD
$6,457 USD
B+
Retailer 2
-
$9,614 AUD
$6,753 USD
View
B+
Retailer 3
-
$9,696 AUD
$6,811 USD
View
B+
Retailer 4
-
$9,908 AUD
$6,960 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,946 AUD
$6,986 USD
View
B+
Retailer 6
-
$10,231 AUD
CA$9,982 CAD
View
B+
Retailer 7
-
$10,355 AUD
$7,274 USD
View
B+
Retailer 8
-
$10,537 AUD
$7,402 USD
View
B+
Retailer 9
-
$11,031 AUD
$7,749 USD
View
B+
Retailer 10
-
$11,218 AUD
$7,880 USD
View
B+
Retailer 11
-
$11,392 AUD
$8,002 USD
View
B+
Retailer 12
-
$11,444 AUD
£6,330 GBP
View
B+
Retailer 13
-
$11,460 AUD
$8,050 USD
View
B
Retailer 14
-
$11,584 AUD
$8,137 USD
View
B
Retailer 15
-
$11,870 AUD
$8,338 USD
View
B+
Retailer 16
-
$11,997 AUD
£6,636 GBP
View
B
Retailer 17
-
$12,343 AUD
$8,670 USD
View
B
Retailer 18
-
$12,343 AUD
$8,670 USD
View
B+
Retailer 19
-
$12,516 AUD
$8,792 USD
View
B
Retailer 20
-
$12,755 AUD
$8,960 USD
View
B
Retailer 21
-
$12,945 AUD
$9,093 USD
View
B
Retailer 22
-
$13,528 AUD
€9,050 EUR
View
B
Retailer 23
-
$13,671 AUD
$9,603 USD
View
B
Retailer 24
-
$17,257 AUD
£9,545 GBP
View
Most Expensive
B
NZ Jewellers
0bc98995-06ed-4b16-9829-d654d88a7075 · Oct 30
$20,711 AUD
$14,548 USD
View
24 more retailers have this diamond
Prices start from $9,192 AUDSave up to $11,518 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
$9,192 AUD