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1.51ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2554355031

Certificate GIA 2554355031

Diamond specifications and retailer prices

From $3,625 NZD
$2,039 USD
As of October 31, 2026
Save $12,480 NZD (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $16,105 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 2554355031. Listed at 7 retailers as of October 31, 2026, with prices from $3,625 to $16,105, a $12,480 spread on the same certified stone. MOH London lists it at $16,105. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2554355031
Dimensions7.33 × 7.37 × 4.54 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
7.33 mm7.37 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554355031
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.9%

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: Oct 31
Current: $16,105 NZD|Low: $3,625 NZD|High: $16,685 NZD|Avg: $10,946 NZD|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$3,625 NZD
Retailer 4$9,772 NZD
Retailer 2$10,932 NZD
Retailer 5$10,932 NZD
Retailer 3$11,605 NZD
Retailer 6$12,356 NZD
MOH London$16,105 NZD

41 data points across 7 retailers

7 retailers$3,625 NZD to $16,105 NZD

A
Cheapest Retailer
-
$3,625 NZD
$2,039 USD
A
Retailer 2
-
$9,772 NZD
£4,329 GBP
View
A
Retailer 3
-
$10,932 NZD
$6,151 USD
View
A
Retailer 4
-
$10,932 NZD
$6,151 USD
View
A
Retailer 5
-
$11,605 NZD
£5,142 GBP
View
B+
Retailer 6
-
$12,356 NZD
$6,952 USD
View
Most Expensive
B
MOH London
4B920FA24 · Nov 1
$16,105 NZD
£7,135 GBP
View
6 more retailers have this diamond
Prices start from $3,625 NZDSave up to $12,480 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 Round
$3,625 NZD