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Round|Lab Grown|IGI

1.17ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG710589221

Shape and cutting style on the report: Round brilliant

Certificate IGI LG710589221

Diamond specifications and retailer prices

From $447 USD
A$688 AUD
As of October 31, 2026
9 retailers carry this diamond
Most expensive: $843 USD at MOH London · As of October 8, 2026
View at MOH London

About this 1.17ct lab-grown round diamond

This 1.17ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG710589221 or 710589221. Listed at 9 retailers as of October 31, 2026. 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

1.17
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710589221
Dimensions6.81 × 6.78 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.81 mm6.78 mm1.17 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG710589221
Side View
Table 56.0%Crown 35°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $843 USD|Low: $138 USD|High: $846 USD|Avg: $387 USD|+0.8%
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
October 31, 2026
Retailer 13$138 USD
Retailer 5$161 USD
Retailer 12$179 USD
Retailer 14$179 USD
Retailer 4$240 USD
Retailer 10$294 USD
Retailer 7$324 USD
Retailer 9$358 USD
Retailer 3$430 USD
Retailer 11$445 USD
Retailer 2$447 USD
Retailer 8$549 USD
Retailer 6$580 USD
MOH London$843 USD

29 data points across 14 retailers

9 retailers

Retailer 1
-
$138 USD
Price last confirmed 23 days ago
Retailer 2
-
$167 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$179 USD
View
Price last confirmed 28 days ago
Retailer 4
-
$358 USD
£282 GBP
View
Price last confirmed 22 days ago
Retailer 5
-
$445 USD
View
Price last confirmed 23 days ago
B+
Retailer 6
-
$447 USD
A$688 AUD
View
Retailer 7
-
$549 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$575 USD
View
Price last confirmed 31 days ago
Most Expensive
MOH London
LG710589221 · Oct 8
$843 USD
£664 GBP
View
Price last confirmed 22 days ago
8 more retailers have this diamond
Prices start from $447 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+
1.17ct Round
$447 USD