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Round|Lab Grown|IGI

1.27ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG761566690

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761566690

Diamond specifications and retailer prices

From $173 USD
As of November 1, 2026
Save $828 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,001 USD 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG761566690 or 761566690. Listed at 16 retailers as of November 1, 2026, with prices from $173 to $1,001, a $828 spread on the same certified stone. MOH London lists it at $1,001. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761566690
Dimensions6.94 × 6.89 × 4.32 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
6.94 mm6.89 mm1.27 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761566690
Side View
Table 56.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,001 USD|Low: $166 USD|High: $1,031 USD|Avg: $418 USD|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
November 6, 2026
Retailer 13$173 USD
Retailer 14$193 USD
Retailer 4$200 USD
Retailer 7$214 USD
Retailer 15$214 USD
Retailer 2$368 USD
Retailer 12$381 USD
Retailer 5$382 USD
Retailer 6$410 USD
Retailer 11$423 USD
Retailer 16$465 USD
Retailer 9$485 USD
Retailer 10$561 USD
Retailer 8$600 USD
Retailer 3$688 USD
MOH London$1,001 USD

37 data points across 16 retailers

16 retailers$173 USD to $1,001 USD

A
Cheapest Retailer
-
$173 USD
A
Retailer 2
-
$193 USD
View
Final sale: no returns
A
Retailer 3
-
$200 USD
View
A
Retailer 4
-
$214 USD
View
Retailer 5
-
$214 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$368 USD
View
A
Retailer 7
-
$381 USD
View
A
Retailer 8
-
$382 USD
View
A
Retailer 9
-
$410 USD
View
A
Retailer 10
-
$423 USD
View
B+
Retailer 11
-
$465 USD
View
B+
Retailer 12
-
$485 USD
View
B
Retailer 13
-
$561 USD
View
B
Retailer 14
-
$600 USD
View
B+
Retailer 15
-
$688 USD
View
Most Expensive
B
MOH London
LG761566690 · Nov 1
$1,001 USD
£788 GBP
View
15 more retailers have this diamond
Prices start from $173 USDSave up to $828 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
$173 USD