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Round|Natural|GIA

3.09ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2547963667

Certificate GIA 2547963667

Diamond specifications and retailer prices

From $36,847 NZD
£16,324 GBP
As of November 2, 2026
Save $7,303 NZD (17%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $44,150 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.09ct natural round diamond

This 3.09ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547963667. Listed at 4 retailers as of October 31, 2026, with prices from $36,847 to $44,150, a $7,303 spread on the same certified stone. Blue Nile lists it at $44,150. 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

3.09
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2547963667
Dimensions9.23 × 9.28 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
9.23 mm9.28 mm3.09 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547963667
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 2
Current: $44,150 NZD|Low: $36,847 NZD|High: $45,175 NZD|Avg: $40,370 NZD|-2.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3$36,847 NZD
Retailer 2$37,999 NZD
Retailer 4$39,337 NZD
Blue Nile$44,150 NZD

40 data points across 4 retailers

4 retailers$36,847 NZD to $44,150 NZD

A
Cheapest Retailer
-
$36,847 NZD
£16,324 GBP
A
Retailer 2
-
$37,999 NZD
$21,380 USD
View
A
Retailer 3
-
$39,337 NZD
$22,133 USD
View
Most Expensive
B+
Blue Nile
28798320 · Oct 31
$44,150 NZD
$24,841 USD
View
3 more retailers have this diamond
Prices start from $36,847 NZDSave up to $7,303 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
3.09ct Round
$36,847 NZD