CaratHunter
Plans
Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2567103225

Certificate GIA 2567103225

Diamond specifications and retailer prices

From $7,131 NZD
HK$31,400 HKD
As of October 28, 2026
Save $8,577 NZD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $16,952 NZD at NZ Jewellers · As of October 14, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2567103225. Listed at 11 retailers as of October 28, 2026, with a 120% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2567103225
Dimensions7.24 × 7.30 × 4.56 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
7.24 mm7.30 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2567103225
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: Oct 28
Current: $16,952 NZD|Low: $7,131 NZD|High: $17,314 NZD|Avg: $10,798 NZD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 5$7,131 NZD
Retailer 6$8,207 NZD
Retailer 10$8,598 NZD
Retailer 9$9,161 NZD
Retailer 3$10,135 NZD
Retailer 11$10,135 NZD
Retailer 2$10,148 NZD
Retailer 8$10,355 NZD
Retailer 7$11,010 NZD
Retailer 4$15,708 NZD
NZ Jewellers$16,952 NZD

29 data points across 11 retailers

11 retailers$7,131 NZD to $15,708 NZD

A
Cheapest Retailer
-
$7,131 NZD
HK$31,400 HKD
Retailer 2
-
$8,207 NZD
€4,405 EUR
View
Price last confirmed 5 days ago
A
Retailer 3
-
$8,598 NZD
$4,846 USD
View
A
Retailer 4
-
$9,161 NZD
SGD 6,977 SGD
View
Retailer 5
-
$10,135 NZD
$5,712 USD
View
Price last confirmed 19 days ago
Retailer 6
-
$10,135 NZD
$5,712 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$10,148 NZD
£4,504 GBP
View
B+
Retailer 8
-
$10,355 NZD
$5,836 USD
View
B+
Retailer 9
-
$11,010 NZD
€5,910 EUR
View
B
Retailer 10
-
$15,708 NZD
£6,971 GBP
View
Most Expensive
NZ Jewellers
4999cb3f-c561-4b78-81e9-38bc7486ca1c · Oct 14
$16,952 NZD
$9,554 USD
View
Price last confirmed 19 days ago
10 more retailers have this diamond
Prices start from $7,131 NZDSave up to $8,577 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
$7,131 NZD