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1.27ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG656490919

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656490919

Diamond specifications and retailer prices

From $547 NZD
£242 GBP
As of November 6, 2026
1 retailer carries this diamond
Only listing: $547 NZD at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at 77 Diamonds

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 LG656490919 or 656490919. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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 angle32.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656490919
Dimensions7.05 × 7.11 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.05 mm7.11 mm1.27 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656490919
Side View
Table 58.0%Crown 32.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $547 NZD|Low: $221 NZD|High: $1,879 NZD|Avg: $844 NZD|-1.0%
77 Diamonds
Retailer 2
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November 6, 2026
Retailer 12$221 NZD
Retailer 6$386 NZD
Retailer 2$438 NZD
77 Diamonds$547 NZD
Retailer 11$608 NZD
Retailer 10$665 NZD
Retailer 7$719 NZD
Retailer 13$888 NZD
Retailer 14$897 NZD
Retailer 4$1,064 NZD
Retailer 5$1,137 NZD
Retailer 9$1,156 NZD
Retailer 3$1,210 NZD
Retailer 8$1,879 NZD

41 data points across 14 retailers

1 retailer

A
77 Diamonds
RBTHER6UVQTGHX · Nov 6
$547 NZD
£242 GBP
View

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
$547 NZD