CaratHunter
Plans
Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2527748242

Certificate GIA 2527748242

Diamond specifications and retailer prices

From $12,613 NZD
As of November 5, 2026
Save $10,529 NZD (45%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $26,896 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2527748242. Listed at 20 retailers as of November 4, 2026, with a 83% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2527748242
Dimensions7.23 × 7.30 × 4.57 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Knot, Needle
Top View
7.23 mm7.30 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2527748242
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.8%

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 5
Current: $15,432 NZD|Low: $12,613 NZD|High: $23,454 NZD|Avg: $15,902 NZD
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
Retailer 17
November 6, 2026
Retailer 2$12,613 NZD
Retailer 5$13,037 NZD
Retailer 14$13,228 NZD
Retailer 3$13,392 NZD
Retailer 17$13,881 NZD
Retailer 6$13,923 NZD
Retailer 4$14,835 NZD
Retailer 8$14,844 NZD
Retailer 10$15,185 NZD
Retailer 7$15,404 NZD
Retailer 9$15,423 NZD
Retailer 1$15,432 NZD
Retailer 16$15,678 NZD
Retailer 15$16,854 NZD
Retailer 12$17,790 NZD
Retailer 11$20,314 NZD
Retailer 13$23,142 NZD

31 data points across 17 retailers

20 retailers$12,613 NZD to $23,142 NZD

A
Cheapest Retailer
-
$12,613 NZD
B+
Retailer 2
-
$12,986 NZD
View
B+
Retailer 3
-
$13,037 NZD
View
B+
Retailer 4
-
$13,228 NZD
View
B+
Retailer 5
-
$13,392 NZD
View
B+
Retailer 6
-
$13,881 NZD
View
B+
Retailer 7
-
$13,923 NZD
View
Final sale: no returns
B+
Retailer 8
-
$14,835 NZD
View
B+
Retailer 9
-
$15,185 NZD
View
Retailer 10
-
$15,404 NZD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$15,432 NZD
View
Retailer 12
-
$15,678 NZD
View
Price last confirmed 15 days ago
Retailer 13
-
$16,080 NZD
View
Price last confirmed 29 days ago
Retailer 14
-
$16,329 NZD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
$16,854 NZD
View
B+
Retailer 16
-
$17,790 NZD
View
Retailer 17
-
$18,555 NZD
View
Price last confirmed 38 days ago
B
Retailer 18
-
$20,314 NZD
View
B
Retailer 19
-
$23,142 NZD
View
Most Expensive
NZ Jewellers
be9c3285-1c73-4813-8bc1-fe060c57aea2 · Sep 28
$26,896 NZD
$14,910 USD
View
Price last confirmed 39 days ago
19 more retailers have this diamond
Prices start from $12,613 NZDSave up to $10,529 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
$12,613 NZD