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Round|Natural|IGI

1.27ct I SI2 Round Natural Diamond

VG • I/SI2 • IGI 523290758

Shape and cutting style on the report: Round brilliant

Certificate IGI 523290758

Diamond specifications and retailer prices

From $3,536 AUD
$2,484 USD
As of October 30, 2026
Save $4,719 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,255 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.27ct natural round diamond

This 1.27ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 523290758. Listed at 12 retailers as of October 30, 2026, with prices from $3,536 to $8,255, a $4,719 spread on the same certified stone. NZ Jewellers lists it at $8,255. 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

1.27
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 523290758
Dimensions6.80 × 6.77 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.80 mm6.77 mm1.27 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 523290758
Side View
Table 57.5%Crown 35.6°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 64.3%

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 30
Current: $8,255 AUD|Low: $3,340 AUD|High: $8,997 AUD|Avg: $5,010 AUD|-8.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 9$3,536 AUD
Retailer 7$3,595 AUD
Retailer 10$3,644 AUD
Retailer 12$3,949 AUD
Retailer 13$3,949 AUD
Retailer 3$3,992 AUD
Retailer 8$4,100 AUD
Retailer 11$4,556 AUD
Retailer 2$4,623 AUD
Retailer 4$5,121 AUD
Retailer 6$6,926 AUD
Retailer 5$6,953 AUD
NZ Jewellers$8,255 AUD

27 data points across 13 retailers

12 retailers$3,536 AUD to $8,255 AUD

A
Cheapest Retailer
-
$3,536 AUD
$2,484 USD
Retailer 2
-
$3,595 AUD
$2,525 USD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
$3,644 AUD
$2,560 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,949 AUD
$2,774 USD
View
B+
Retailer 5
-
$3,949 AUD
$2,774 USD
View
A
Retailer 6
-
$4,100 AUD
$2,880 USD
View
Retailer 7
-
$4,304 AUD
$3,023 USD
View
Price last confirmed 54 days ago
B+
Retailer 8
-
$4,556 AUD
$3,200 USD
View
A
Retailer 9
-
$4,623 AUD
€3,093 EUR
View
Retailer 10
-
$4,966 AUD
$3,488 USD
View
Price last confirmed 55 days ago
B
Retailer 11
-
$6,926 AUD
£3,831 GBP
View
Most Expensive
B
NZ Jewellers
4cc9f96c-d8c8-4d2c-9a2a-53fa9ec43a4d · Oct 30
$8,255 AUD
$5,799 USD
View
11 more retailers have this diamond
Prices start from $3,536 AUDSave up to $4,719 AUD

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
1.27ct Round
$3,536 AUD