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1.27ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 722558728

Shape and cutting style on the report: Round brilliant

Certificate IGI 722558728

Diamond specifications and retailer prices

From $2,010 USD
As of October 28, 2026
Save $2,641 USD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,651 USD at NZ Jewellers · As of October 27, 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 top-tier cut grade and certified by IGI 722558728. Listed at 11 retailers as of October 27, 2026, with prices from $2,010 to $4,651, a $2,641 spread on the same certified stone. NZ Jewellers lists it at $4,651. 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

1.27
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 722558728
Dimensions6.85 × 6.88 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.85 mm6.88 mm1.27 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 722558728
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.4%

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 28
Current: $4,651 USD|Low: $2,010 USD|High: $4,651 USD|Avg: $2,738 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 8$2,010 USD
Retailer 5$2,123 USD
Retailer 10$2,182 USD
Retailer 9$2,225 USD
Retailer 11$2,225 USD
Retailer 7$2,327 USD
Retailer 3$2,364 USD
Retailer 12$2,567 USD
Retailer 4$2,666 USD
Retailer 2$2,774 USD
Retailer 6$3,903 USD
NZ Jewellers$4,651 USD

21 data points across 12 retailers

11 retailers$2,010 USD to $4,651 USD

A
Cheapest Retailer
-
$2,010 USD
A
Retailer 2
-
$2,123 USD
£1,671 GBP
View
A
Retailer 3
-
$2,182 USD
View
A
Retailer 4
-
$2,225 USD
View
Retailer 5
-
$2,225 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$2,327 USD
View
A
Retailer 7
-
$2,364 USD
View
A
Retailer 8
-
$2,567 USD
View
A
Retailer 9
-
$2,774 USD
€2,642 EUR
View
B+
Retailer 10
-
$3,903 USD
£3,073 GBP
View
Most Expensive
B
NZ Jewellers
e363ac91-d48e-44a0-bcad-6ccbbdf1bddd · Oct 27
$4,651 USD
View
10 more retailers have this diamond
Prices start from $2,010 USDSave up to $2,641 USD

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
$2,010 USD