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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6552995075

Certificate GIA 6552995075

Diamond specifications and retailer prices

From $9,448 NZD
HK$41,600 HKD
As of November 1, 2026
Save $9,158 NZD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,775 NZD at NZ Jewellers · As of September 27, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552995075. Listed at 15 retailers as of November 1, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552995075
Dimensions7.25 × 7.29 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.25 mm7.29 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552995075
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $11,732 NZD|Low: $9,006 NZD|High: $18,606 NZD|Avg: $12,097 NZD|-1.8%
Retailer 1
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 2$9,448 NZD
Retailer 6$9,563 NZD
Retailer 16$9,979 NZD
Retailer 15$9,998 NZD
Retailer 8$10,522 NZD
Retailer 14$10,561 NZD
Retailer 7$11,466 NZD
Retailer 1$11,732 NZD
Retailer 10$12,031 NZD
Retailer 3$12,722 NZD
Retailer 4$12,917 NZD
Retailer 11$12,991 NZD
Retailer 9$13,148 NZD
Retailer 12$14,459 NZD
Retailer 5$14,557 NZD
Retailer 13$18,606 NZD

25 data points across 16 retailers

15 retailers$9,448 NZD to $18,606 NZD

A
Cheapest Retailer
-
$9,448 NZD
HK$41,600 HKD
A
Retailer 2
-
$9,979 NZD
$5,624 USD
View
A
Retailer 3
-
$9,998 NZD
$5,635 USD
View
A
Retailer 4
-
$10,561 NZD
$5,952 USD
View
Final sale: no returns
A
Retailer 5
-
$11,732 NZD
£5,206 GBP
View
A
Retailer 6
-
$12,031 NZD
£5,339 GBP
View
Retailer 7
-
$12,422 NZD
$7,001 USD
View
Price last confirmed 34 days ago
B+
Retailer 8
-
$12,722 NZD
$7,170 USD
View
B+
Retailer 9
-
$12,917 NZD
$7,280 USD
View
B+
Retailer 10
-
$12,991 NZD
€6,973 EUR
View
B+
Retailer 11
-
$13,148 NZD
$7,410 USD
View
Retailer 12
-
$14,333 NZD
$8,078 USD
View
Price last confirmed 35 days ago
B+
Retailer 13
-
$14,459 NZD
$8,149 USD
View
B
Retailer 14
-
$18,606 NZD
£8,257 GBP
View
Most Expensive
NZ Jewellers
7636fe49-2ea9-4b23-907b-2cc38d964eac · Sep 27
$20,775 NZD
$11,709 USD
View
Price last confirmed 36 days ago
14 more retailers have this diamond
Prices start from $9,448 NZDSave up to $9,158 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
$9,448 NZD