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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

VG • H/SI2 • GIA 1226341518

Certificate GIA 1226341518

Diamond specifications and retailer prices

From $8,157 NZD
As of November 7, 2026
Save $9,988 NZD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,145 NZD at Belgium Diamonds · As of November 5, 2026
View at Belgium Diamonds

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1226341518. Listed at 12 retailers as of November 5, 2026, with prices from $8,157 to $18,145, a $9,988 spread on the same certified stone. Belgium Diamonds lists it at $18,145. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.68°
Pavilion angle35.09°
OriginNatural
Grading LabGIA
CertificateGIA 1226341518
Dimensions7.15 × 5.80 × 4.13 mm
L/W Ratio1.23
Top View
7.15 mm5.80 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1226341518
Side View
Table 72.0%Crown 47.68°Girdle: ThickPavilion 35.09°Culet: NoneDepth 71.3%

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 7
Current: $10,035 NZD|Low: $7,739 NZD|High: $17,361 NZD|Avg: $10,606 NZD|-1.2%
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 4, 2026
Retailer 8$7,739 NZD
Retailer 9$7,784 NZD
Retailer 3$8,157 NZD
Retailer 7$9,054 NZD
Retailer 12$9,110 NZD
Retailer 2$9,582 NZD
Retailer 11$10,026 NZD
Retailer 1$10,035 NZD
Retailer 6$10,380 NZD
Retailer 13$10,380 NZD
Retailer 17$10,380 NZD
Retailer 5$10,659 NZD
Retailer 14$11,258 NZD
Retailer 10$11,978 NZD
Retailer 4$12,375 NZD
Retailer 16$15,373 NZD
Retailer 15$17,361 NZD

28 data points across 17 retailers

12 retailers$8,157 NZD to $18,145 NZD

A
Cheapest Retailer
-
$8,157 NZD
Retailer 2
-
$9,054 NZD
View
Price last confirmed 18 days ago
Retailer 3
-
$9,110 NZD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$10,026 NZD
View
B+
Retailer 5
-
$10,035 NZD
View
Retailer 6
-
$10,380 NZD
View
Price last confirmed 22 days ago
Retailer 7
-
$10,380 NZD
View
Price last confirmed 18 days ago
B+
Retailer 8
-
$10,659 NZD
View
B
Retailer 9
-
$11,978 NZD
View
Retailer 10
-
$15,373 NZD
View
Price last confirmed 19 days ago
Retailer 11
-
$17,361 NZD
View
Price last confirmed 20 days ago
Most Expensive
B
Belgium Diamonds
427921467 · Nov 5
$18,145 NZD
€9,580 EUR
View
11 more retailers have this diamond
Prices start from $8,157 NZDSave up to $9,988 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 Radiant
$8,157 NZD