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Radiant|Natural|GIA

1.51ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 2556299950

Certificate GIA 2556299950

Diamond specifications and retailer prices

From $13,746 NZD
As of November 5, 2026
Save $2,331 NZD (14%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $16,076 NZD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556299950. Listed at 4 retailers as of November 5, 2026, with prices from $13,746 to $16,076, a $2,331 spread on the same certified stone. The Diamond Guys lists it at $16,076. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.43°
Pavilion angle35.64°
OriginNatural
Grading LabGIA
CertificateGIA 2556299950
Dimensions7.74 × 5.77 × 3.90 mm
L/W Ratio1.34
Girdle conditionThick
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
7.74 mm5.77 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556299950
Side View
Table 70.0%Crown 51.43°Girdle: Very ThinPavilion 35.64°Culet: NoneDepth 67.5%

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 5
Current: $14,413 NZD|Low: $10,818 NZD|High: $18,674 NZD|Avg: $14,380 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
The Diamond Guys
November 6, 2026
Retailer 5$10,818 NZD
Retailer 6$11,274 NZD
Retailer 4$12,267 NZD
Retailer 13$13,100 NZD
Retailer 2$13,210 NZD
Retailer 7$13,746 NZD
Retailer 12$13,953 NZD
Retailer 10$14,375 NZD
Retailer 1$14,413 NZD
Retailer 8$14,413 NZD
The Diamond Guys$16,076 NZD
Retailer 14$16,376 NZD
Retailer 9$16,471 NZD
Retailer 3$16,544 NZD
Retailer 11$18,674 NZD

2 data points across 15 retailers

4 retailers$13,746 NZD to $16,076 NZD

B+
Cheapest Retailer
-
$13,746 NZD
B+
Retailer 2
-
$14,413 NZD
View
B+
Retailer 3
-
$14,413 NZD
View
Most Expensive
B
The Diamond Guys
1992899966 · Nov 6
$16,076 NZD
$8,912 USD
View
3 more retailers have this diamond
Prices start from $13,746 NZDSave up to $2,331 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
$13,746 NZD