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Round|Natural|GIA

1.51ct G I1 Round Natural Diamond

EX • G/I1 • GIA 6512377769

Certificate GIA 6512377769

Diamond specifications and retailer prices

From $7,381 NZD
HK$32,500 HKD
As of November 1, 2026
Save $9,432 NZD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,813 NZD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6512377769. Listed at 10 retailers as of October 30, 2026, with prices from $7,381 to $16,813, a $9,432 spread on the same certified stone. NZ Jewellers lists it at $16,813. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6512377769
Dimensions7.30 × 7.25 × 4.57 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.30 mm7.25 mm1.51 ctG / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512377769
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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: $16,813 NZD|Low: $1,398 NZD|High: $16,813 NZD|Avg: $10,246 NZD
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
November 1, 2026
Retailer 7$7,381 NZD
Retailer 8$8,605 NZD
Retailer 14$8,767 NZD
Retailer 10$9,003 NZD
Retailer 9$10,051 NZD
Retailer 13$10,051 NZD
Retailer 11$10,066 NZD
Retailer 4$10,664 NZD
Retailer 5$10,664 NZD
Retailer 6$10,853 NZD
Retailer 3$11,018 NZD
Retailer 2$11,327 NZD
Retailer 12$11,599 NZD
NZ Jewellers$16,813 NZD

24 data points across 14 retailers

10 retailers$7,381 NZD to $16,813 NZD

A
Cheapest Retailer
-
$7,381 NZD
HK$32,500 HKD
B+
Retailer 2
-
$8,605 NZD
$4,850 USD
View
B+
Retailer 3
-
$8,767 NZD
$4,941 USD
View
B+
Retailer 4
-
$9,003 NZD
$5,074 USD
View
B
Retailer 5
-
$10,051 NZD
$5,665 USD
View
B
Retailer 6
-
$10,051 NZD
$5,665 USD
View
B
Retailer 7
-
$10,066 NZD
$5,673 USD
View
B+
Retailer 8
-
$11,327 NZD
€6,080 EUR
View
B
Retailer 9
-
$11,599 NZD
$6,537 USD
View
Most Expensive
B
NZ Jewellers
ac7aa71d-1f65-4b99-a795-a1c712b0aa66 · Oct 30
$16,813 NZD
$9,476 USD
View
9 more retailers have this diamond
Prices start from $7,381 NZDSave up to $9,432 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 Round
$7,381 NZD