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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 6552357437

Certificate GIA 6552357437

Diamond specifications and retailer prices

From $6,529 NZD
HK$28,700 HKD
As of November 1, 2026
Save $6,200 NZD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,729 NZD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552357437. Listed at 14 retailers as of October 27, 2026, with prices from $6,529 to $12,729, a $6,200 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,729. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552357437
Dimensions7.70 × 5.64 × 4.00 mm
L/W Ratio1.37
Top View
7.70 mm5.64 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552357437
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.9%

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 1
Current: $6,668 NZD|Low: $6,370 NZD|High: $12,729 NZD|Avg: $8,207 NZD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 2, 2026
Retailer 5$6,529 NZD
Retailer 1$6,668 NZD
Retailer 6$6,967 NZD
Retailer 3$7,003 NZD
Retailer 8$7,480 NZD
Retailer 10$7,777 NZD
Retailer 7$7,895 NZD
Retailer 2$8,296 NZD
Retailer 9$9,182 NZD
Retailer 11$9,246 NZD
Retailer 4$9,701 NZD
Wholesale Diamonds Direct$12,729 NZD

35 data points across 12 retailers

14 retailers$6,529 NZD to $12,729 NZD

A
Cheapest Retailer
-
$6,529 NZD
HK$28,700 HKD
A
Retailer 2
-
$6,668 NZD
₹357,319 INR
View
Retailer 3
-
$6,967 NZD
€3,733 EUR
View
Price last confirmed 8 days ago
A
Retailer 4
-
$7,003 NZD
$3,940 USD
View
Final sale: no returns
A
Retailer 5
-
$7,272 NZD
A$6,295 AUD
View
A
Retailer 6
-
$7,480 NZD
SGD 5,687 SGD
View
B+
Retailer 7
-
$7,777 NZD
$4,376 USD
View
A
Retailer 8
-
$7,895 NZD
$4,442 USD
View
B+
Retailer 9
-
$8,015 NZD
A$6,938 AUD
View
Retailer 10
-
$8,296 NZD
SGD 6,308 SGD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$9,182 NZD
$5,166 USD
View
B+
Retailer 12
-
$9,246 NZD
$5,202 USD
View
B+
Retailer 13
-
$9,701 NZD
£4,298 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
378736955 · Oct 27
$12,729 NZD
$7,162 USD
View
13 more retailers have this diamond
Prices start from $6,529 NZDSave up to $6,200 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
$6,529 NZD