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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 6552489335

Certificate GIA 6552489335

Diamond specifications and retailer prices

From $14,131 NZD
$7,951 USD
As of November 2, 2026
Save $11,321 NZD (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $25,453 NZD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552489335. Listed at 18 retailers as of November 2, 2026, with prices from $14,131 to $25,453, a $11,321 spread on the same certified stone. NZ Jewellers lists it at $25,453. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle49.15°
Pavilion angle35.48°
OriginNatural
Grading LabGIA
CertificateGIA 6552489335
Dimensions7.92 × 5.75 × 3.83 mm
L/W Ratio1.38
Girdle conditionVery Thick
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.92 mm5.75 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552489335
Side View
Table 70.0%Crown 49.15°GirdlePavilion 35.48°Culet: NoneDepth 66.5%

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 2
Current: $16,693 NZD|Low: $14,131 NZD|High: $24,138 NZD|Avg: $17,967 NZD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 3$14,131 NZD
Retailer 12$15,271 NZD
Retailer 2$15,399 NZD
Retailer 1$16,693 NZD
Retailer 10$16,770 NZD
Retailer 11$16,799 NZD
Retailer 5$17,085 NZD
Retailer 9$17,510 NZD
Retailer 4$19,088 NZD
Retailer 6$19,236 NZD
Retailer 8$22,435 NZD
Retailer 7$23,849 NZD

42 data points across 12 retailers

18 retailers$14,131 NZD to $25,453 NZD

B+
Cheapest Retailer
-
$14,131 NZD
$7,951 USD
B+
Retailer 2
-
$14,298 NZD
$8,045 USD
View
B
Retailer 3
-
$15,169 NZD
$8,535 USD
View
B
Retailer 4
-
$15,271 NZD
$8,592 USD
View
B
Retailer 5
-
$15,399 NZD
$8,664 USD
View
B
Retailer 6
-
$16,279 NZD
$9,159 USD
View
B
Retailer 7
-
$16,543 NZD
$9,308 USD
View
B+
Retailer 8
-
$16,693 NZD
£7,396 GBP
View
Retailer 9
-
$16,770 NZD
A$14,517 AUD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$16,799 NZD
$9,452 USD
View
B
Retailer 11
-
$17,085 NZD
£7,569 GBP
View
B
Retailer 12
-
$17,510 NZD
$9,852 USD
View
B
Retailer 13
-
$19,088 NZD
$10,740 USD
View
B
Retailer 14
-
$19,236 NZD
€10,308 EUR
View
Retailer 15
-
$20,101 NZD
$11,310 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$22,435 NZD
ZAR 203,923 ZAR
View
B
Retailer 17
-
$23,849 NZD
£10,566 GBP
View
Most Expensive
C
NZ Jewellers
2de2635f-1403-4544-9f2b-bc92c675e8ae · Nov 3
$25,453 NZD
$14,321 USD
View
17 more retailers have this diamond
Prices start from $14,131 NZDSave up to $11,321 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
$14,131 NZD