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Round|Natural|GIA

1.51ct H I1 Round Natural Diamond

EX • H/I1 • GIA 7551664938

Certificate GIA 7551664938

Diamond specifications and retailer prices

From $7,827 NZD
$4,404 USD
As of November 1, 2026
Save $3,228 NZD (29%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,410 NZD 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 top-tier cut grade and certified by GIA 7551664938. Listed at 10 retailers as of November 1, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551664938
Dimensions7.31 × 7.36 × 4.54 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
7.31 mm7.36 mm1.51 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551664938
Side View
Table 58.0%Crown 35°Girdle: STK-STKPavilion 40.8°Culet: NoneDepth 61.8%

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: $11,055 NZD|Low: $7,827 NZD|High: $11,251 NZD|Avg: $9,816 NZD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2$7,827 NZD
Retailer 3$9,455 NZD
Retailer 4$10,060 NZD
Retailer 5$10,060 NZD
Retailer 6$10,397 NZD
Retailer 1$11,055 NZD

18 data points across 6 retailers

10 retailers$7,827 NZD to $11,055 NZD

B+
Cheapest Retailer
-
$7,827 NZD
$4,404 USD
Retailer 2
-
$8,888 NZD
$5,001 USD
View
Price last confirmed 26 days ago
Retailer 3
-
$9,180 NZD
$5,165 USD
View
Price last confirmed 34 days ago
B+
Retailer 4
-
$9,455 NZD
$5,320 USD
View
B
Retailer 5
-
$10,060 NZD
$5,660 USD
View
B
Retailer 6
-
$10,060 NZD
$5,660 USD
View
Retailer 7
-
$10,257 NZD
$5,771 USD
View
Price last confirmed 24 days ago
B
Retailer 8
-
$10,397 NZD
$5,850 USD
View
B
Retailer 9
-
$11,055 NZD
€5,924 EUR
View
Most Expensive
NZ Jewellers
897f801d-11a2-4dd8-ad43-ad3bc4ba92bc · Sep 28
$16,410 NZD
$9,233 USD
View
Price last confirmed 35 days ago
9 more retailers have this diamond
Prices start from $7,827 NZDSave up to $3,228 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.

B+
1.51ct Round
$7,827 NZD