Oval|Natural|GIA

1.51ct I I1 Oval Natural Diamond

VG • I/I1 • GIA 6405301687

Certificate GIA 6405301687

Diamond specifications and retailer prices

From $6,309 NZD
$3,550 USD
As of November 1, 2026
Save $2,835 NZD (31%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $14,080 NZD at NZ Jewellers · As of September 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 I colour (near-colourless) and I1 clarity (included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6405301687. Listed at 11 retailers as of November 1, 2026, with a 45% 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
I
Colour
I1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6405301687
Dimensions8.66 × 6.33 × 4.03 mm
L/W Ratio1.37
Top View
8.66 mm6.33 mm1.51 ctI / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405301687
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,144 NZD|Low: $6,241 NZD|High: $13,964 NZD|Avg: $8,138 NZD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$6,241 NZD
Retailer 5$6,309 NZD
Retailer 11$6,443 NZD
Retailer 7$6,487 NZD
Retailer 9$7,175 NZD
Retailer 6$7,322 NZD
Retailer 10$8,247 NZD
Retailer 12$8,247 NZD
Retailer 2$8,531 NZD
Retailer 1$9,144 NZD
Retailer 8$9,617 NZD
Retailer 3$13,964 NZD

19 data points across 12 retailers

11 retailers$6,309 NZD to $9,144 NZD

A
Cheapest Retailer
-
$6,309 NZD
$3,550 USD
B+
Retailer 2
-
$6,443 NZD
$3,625 USD
View
B+
Retailer 3
-
$7,175 NZD
$4,037 USD
View
Retailer 4
-
$7,322 NZD
$4,120 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$7,322 NZD
$4,120 USD
View
Price last confirmed 34 days ago
B+
Retailer 6
-
$8,247 NZD
$4,640 USD
View
B+
Retailer 7
-
$8,247 NZD
$4,640 USD
View
Retailer 8
-
$8,448 NZD
$4,753 USD
View
Price last confirmed 35 days ago
B+
Retailer 9
-
$8,531 NZD
$4,800 USD
View
B
Retailer 10
-
$9,144 NZD
€4,900 EUR
View
Most Expensive
NZ Jewellers
a02b1e4d-94ec-4416-8419-fa2182ec3ba2 · Sep 30
$14,080 NZD
$7,922 USD
View
Price last confirmed 33 days ago
10 more retailers have this diamond
Prices start from $6,309 NZDSave up to $2,835 NZD

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.

A
1.51ct Oval
$6,309 NZD