CaratHunter
Plans
Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

VG • H/SI2 • GIA 6395875679

Certificate GIA 6395875679

Diamond specifications and retailer prices

From $9,132 AUD
$6,415 USD
As of November 1, 2026
Save $11,239 AUD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,372 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6395875679. Listed at 18 retailers as of October 30, 2026, with prices from $9,132 to $20,372, a $11,239 spread on the same certified stone. NZ Jewellers lists it at $20,372. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395875679
Dimensions8.94 × 6.44 × 4.07 mm
L/W Ratio1.39
Top View
8.94 mm6.44 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6395875679
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

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: Nov 1
Current: $20,372 AUD|Low: $8,855 AUD|High: $20,372 AUD|Avg: $12,095 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
November 2, 2026
Retailer 12$9,132 AUD
Retailer 8$9,453 AUD
Retailer 5$9,538 AUD
Retailer 14$10,184 AUD
Retailer 13$10,271 AUD
Retailer 7$10,514 AUD
Retailer 4$11,034 AUD
Retailer 15$11,205 AUD
Retailer 9$11,253 AUD
Retailer 3$12,001 AUD
Retailer 6$12,001 AUD
Retailer 16$12,733 AUD
Retailer 2$13,307 AUD
Retailer 11$13,416 AUD
Retailer 10$16,975 AUD
NZ Jewellers$20,372 AUD

43 data points across 16 retailers

18 retailers$9,132 AUD to $20,372 AUD

B+
Cheapest Retailer
-
$9,132 AUD
$6,415 USD
B+
Retailer 2
-
$9,453 AUD
$6,640 USD
View
B+
Retailer 3
-
$9,538 AUD
$6,700 USD
View
B
Retailer 4
-
$10,184 AUD
$7,154 USD
View
Final sale: no returns
B
Retailer 5
-
$10,186 AUD
$7,155 USD
View
B
Retailer 6
-
$10,271 AUD
$7,215 USD
View
B
Retailer 7
-
$10,849 AUD
$7,621 USD
View
B
Retailer 8
-
$11,034 AUD
$7,751 USD
View
B
Retailer 9
-
$11,205 AUD
$7,871 USD
View
B+
Retailer 10
-
$11,253 AUD
£6,224 GBP
View
B
Retailer 11
-
$12,001 AUD
$8,430 USD
View
B
Retailer 12
-
$12,001 AUD
$8,430 USD
View
B
Retailer 13
-
$12,075 AUD
$8,482 USD
View
B
Retailer 14
-
$12,400 AUD
$8,710 USD
View
B
Retailer 15
-
$12,733 AUD
$8,944 USD
View
B
Retailer 16
-
$13,307 AUD
€8,902 EUR
View
B
Retailer 17
-
$16,975 AUD
£9,389 GBP
View
Most Expensive
C
NZ Jewellers
bdf876a8-95fc-4834-be79-3ca322a22f05 · Oct 30
$20,372 AUD
$14,310 USD
View
17 more retailers have this diamond
Prices start from $9,132 AUDSave up to $11,239 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
$9,132 AUD