CaratHunter
Plans
Round|Lab Grown|IGI

1.27ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG819612840

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819612840

Diamond specifications and retailer prices

From $655 NZD
As of November 6, 2026
Save $1,284 NZD (66%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,938 NZD at MOH London · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG819612840 or 819612840. Listed at 10 retailers as of November 5, 2026, with prices from $655 to $1,938, a $1,284 spread on the same certified stone. MOH London lists it at $1,938. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819612840
Dimensions6.91 × 6.87 × 4.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.91 mm6.87 mm1.27 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819612840
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.5%

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: $1,938 NZD|Low: $507 NZD|High: $1,966 NZD|Avg: $1,121 NZD|+10.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$655 NZD
Retailer 5$660 NZD
Retailer 9$760 NZD
Retailer 2$877 NZD
Retailer 3$889 NZD
Retailer 7$1,188 NZD
Retailer 4$1,651 NZD
Retailer 6$1,761 NZD
MOH London$1,938 NZD

45 data points across 9 retailers

10 retailers$655 NZD to $1,938 NZD

B+
Cheapest Retailer
-
$655 NZD
A
Retailer 2
-
$660 NZD
View
A
Retailer 3
-
$760 NZD
View
B+
Retailer 4
-
$877 NZD
View
B+
Retailer 5
-
$889 NZD
View
B+
Retailer 6
-
$984 NZD
View
B+
Retailer 7
-
$1,188 NZD
View
B
Retailer 8
-
$1,651 NZD
View
B
Retailer 9
-
$1,761 NZD
View
Most Expensive
B
MOH London
LG819612840 · Nov 5
$1,938 NZD
£858 GBP
View
9 more retailers have this diamond
Prices start from $655 NZDSave up to $1,284 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
$655 NZD