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Round|Natural|IGI

1.27ct I SI2 Round Natural Diamond

VG • I/SI2 • IGI F1P45634

Certificate IGI F1P45634

Diamond specifications and retailer prices

From $3,375 USD
As of October 30, 2026
Save $337 USD (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,712 USD at Calavera New York · As of October 29, 2026
View at Calavera New York

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 F1P45634. Listed at 2 retailers as of October 29, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabIGI
CertificateIGI F1P45634
Dimensions6.87 × 6.76 × 4.44 mm
L/W Ratio1.02
Top View
6.87 mm6.76 mm1.27 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI F1P45634
Side View
TableCrownGirdlePavilionCuletDepth

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $3,712 USD|Low: $3,296 USD|High: $3,712 USD|Avg: $3,440 USD
Calavera New York
Retailer 2
October 29, 2026
Retailer 2$3,375 USD
Calavera New York$3,712 USD

3 data points across 2 retailers

2 retailers$3,375 USD to $3,712 USD

B
Cheapest Retailer
-
$3,375 USD
Most Expensive
B
Calavera New York
41650621-2325-4881-b5e8-526a8dc0c878 · Oct 29
$3,712 USD
View
1 more retailer has this diamond
Prices start from $3,375 USDSave up to $337 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.

B
1.27ct Round
$3,375 USD