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1.27ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG615372660

Shape and cutting style on the report: Round brilliant

Certificate IGI LG615372660

Diamond specifications and retailer prices

From $428 NZD
As of November 6, 2026
Save $1,474 NZD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,901 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG615372660 or 615372660. Listed at 17 retailers as of November 1, 2026, with prices from $428 to $1,901, a $1,474 spread on the same certified stone. MOH London lists it at $1,901. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615372660
Dimensions6.90 × 6.87 × 4.31 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.90 mm6.87 mm1.27 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615372660
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 6
Current: $1,901 NZD|Low: $428 NZD|High: $1,924 NZD|Avg: $981 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$428 NZD
Retailer 8$474 NZD
Retailer 9$640 NZD
Retailer 7$754 NZD
Retailer 2$860 NZD
Retailer 3$866 NZD
Retailer 6$938 NZD
Retailer 5$1,530 NZD
Retailer 4$1,714 NZD
MOH London$1,901 NZD

41 data points across 10 retailers

17 retailers$428 NZD to $1,901 NZD

Retailer 1
-
$382 NZD
Price last confirmed 46 days ago
A
Retailer 2
-
$428 NZD
View
Final sale: no returns
Retailer 3
-
$444 NZD
View
Price last confirmed 46 days ago
Retailer 4
-
$469 NZD
View
Price last confirmed 43 days ago
B+
Retailer 5
-
$640 NZD
View
A
Retailer 6
-
$754 NZD
View
B+
Retailer 7
-
$860 NZD
View
B+
Retailer 8
-
$866 NZD
View
B+
Retailer 9
-
$938 NZD
View
B
Retailer 10
-
$1,241 NZD
View
Retailer 11
-
$1,524 NZD
View
Price last confirmed 47 days ago
B
Retailer 12
-
$1,530 NZD
View
B
Retailer 13
-
$1,541 NZD
View
B
Retailer 14
-
$1,620 NZD
View
B
Retailer 15
-
$1,678 NZD
View
B
Retailer 16
-
$1,714 NZD
View
Most Expensive
B
MOH London
LG615372660 · Nov 1
$1,901 NZD
£830 GBP
View
16 more retailers have this diamond
Prices start from $428 NZDSave up to $1,474 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
1.27ct Round
$428 NZD