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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6522977444

Certificate GIA 6522977444

Diamond specifications and retailer prices

From $11,388 NZD
As of November 6, 2026
Save $14,265 NZD (56%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $25,653 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6522977444. Listed at 30 retailers as of November 5, 2026, with prices from $11,388 to $25,653, a $14,265 spread on the same certified stone. NZ Jewellers lists it at $25,653. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522977444
Dimensions7.64 × 5.66 × 3.77 mm
L/W Ratio1.35
Top View
7.64 mm5.66 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522977444
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

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 6
Current: $14,341 NZD|Low: $12,119 NZD|High: $21,632 NZD|Avg: $15,890 NZD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 5$12,119 NZD
Retailer 8$12,263 NZD
Retailer 1$14,341 NZD
Retailer 2$14,373 NZD
Retailer 7$14,714 NZD
Retailer 3$16,663 NZD
Retailer 4$18,712 NZD
Retailer 6$21,317 NZD

37 data points across 8 retailers

30 retailers$11,388 NZD to $25,653 NZD

B+
Cheapest Retailer
-
$11,388 NZD
B+
Retailer 2
-
$11,900 NZD
View
B+
Retailer 3
-
$11,940 NZD
View
B+
Retailer 4
-
$12,119 NZD
View
B+
Retailer 5
-
$12,263 NZD
View
Final sale: no returns
B+
Retailer 6
-
$12,310 NZD
View
B+
Retailer 7
-
$12,663 NZD
View
B+
Retailer 8
-
$12,826 NZD
View
Retailer 9
-
$12,826 NZD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$12,934 NZD
View
B
Retailer 11
-
$13,661 NZD
View
B+
Retailer 12
-
$13,895 NZD
View
B+
Retailer 13
-
$14,108 NZD
View
B+
Retailer 14
-
$14,186 NZD
View
B+
Retailer 15
-
$14,341 NZD
View
B+
Retailer 16
-
$14,354 NZD
View
B+
Retailer 17
-
$14,373 NZD
View
B
Retailer 18
-
$14,693 NZD
View
Retailer 19
-
$14,714 NZD
View
Price last confirmed 16 days ago
B
Retailer 20
-
$15,315 NZD
View
B
Retailer 21
-
$15,315 NZD
View
B
Retailer 22
-
$15,492 NZD
View
B
Retailer 23
-
$15,820 NZD
View
B
Retailer 24
-
$16,033 NZD
View
B
Retailer 25
-
$16,663 NZD
View
Retailer 26
-
$16,892 NZD
View
Price last confirmed 15 days ago
B
Retailer 27
-
$16,922 NZD
View
B
Retailer 28
-
$18,712 NZD
View
B
Retailer 29
-
$21,317 NZD
View
Most Expensive
B
NZ Jewellers
187c7af1-6df5-4fe3-81b8-deb2d3b7cfab · Nov 5
$25,653 NZD
$14,221 USD
View
29 more retailers have this diamond
Prices start from $11,388 NZDSave up to $14,265 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 Radiant
$11,388 NZD