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Round|Natural|GIA

1.51ct H I1 Round Natural Diamond

VG • H/I1 • GIA 7518377768

Certificate GIA 7518377768

Diamond specifications and retailer prices

From $5,077 AUD
HK$27,800 HKD
As of November 1, 2026
Save $2,761 AUD (35%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,099 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 7518377768. Listed at 9 retailers as of November 1, 2026, with a 54% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 7518377768
Dimensions7.13 × 7.09 × 4.57 mm
L/W Ratio1.01
Star length55%
Lower girdle70%
Key to symbols
Twinning Wisp, Cloud, Feather, Crystal, Cavity, Needle, Indented Natural, Natural
Top View
7.13 mm7.09 mm1.51 ctH / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7518377768
Side View
Table 58.0%Crown 38°Girdle: THN-THKPavilion 40.2°Culet: NoneDepth 64.3%

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: $7,839 AUD|Low: $4,962 AUD|High: $8,305 AUD|Avg: $6,969 AUD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 8$4,962 AUD
Retailer 3$5,077 AUD
Retailer 6$6,057 AUD
Retailer 4$6,277 AUD
Retailer 5$6,958 AUD
Retailer 1$7,839 AUD
Retailer 2$8,033 AUD
Retailer 9$8,033 AUD
Retailer 7$8,264 AUD
Retailer 10$8,305 AUD

23 data points across 10 retailers

9 retailers$5,077 AUD to $7,839 AUD

B+
Cheapest Retailer
-
$5,077 AUD
HK$27,800 HKD
B+
Retailer 2
-
$6,057 AUD
$4,245 USD
View
B+
Retailer 3
-
$6,277 AUD
$4,399 USD
View
Retailer 4
-
$6,945 AUD
$4,867 USD
View
Price last confirmed 26 days ago
Retailer 5
-
$6,945 AUD
$4,867 USD
View
Price last confirmed 34 days ago
B
Retailer 6
-
$6,958 AUD
$4,876 USD
View
B
Retailer 7
-
$7,839 AUD
€5,232 EUR
View
Retailer 8
-
$8,012 AUD
$5,615 USD
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
301fb141-dbc6-4bf7-9150-08819dd90cbd · Sep 28
$12,099 AUD
$8,479 USD
View
Price last confirmed 36 days ago
8 more retailers have this diamond
Prices start from $5,077 AUDSave up to $2,761 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 Round
$5,077 AUD