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Round|Lab Grown|IGI

1.70ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG737547741

Shape and cutting style on the report: Round brilliant

Certificate IGI LG737547741

Diamond specifications and retailer prices

From €185 EUR
$208 USD
As of November 1, 2026
Save €1,000 EUR (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,186 EUR at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG737547741 or 737547741. Listed at 17 retailers as of November 1, 2026, with prices from €185 to €1,186, a €1,000 spread on the same certified stone. Brilliant Earth lists it at €1,186. 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

1.70
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737547741
Dimensions7.70 × 7.72 × 4.62 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
7.70 mm7.72 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737547741
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.0%

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: €1,186 EUR|Low: €180 EUR|High: €1,507 EUR|Avg: €507 EUR|-21.3%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 7€185 EUR
Retailer 4€207 EUR
Retailer 13€215 EUR
Retailer 3€229 EUR
Retailer 12€229 EUR
Retailer 9€262 EUR
Retailer 6€310 EUR
Retailer 10€422 EUR
Retailer 15€464 EUR
Retailer 16€465 EUR
Retailer 2€485 EUR
Retailer 17€737 EUR
Retailer 8€740 EUR
Retailer 14€740 EUR
Retailer 5€785 EUR
Retailer 11€919 EUR
Brilliant Earth€1,186 EUR

46 data points across 17 retailers

17 retailers€185 EUR to €1,186 EUR

A
Cheapest Retailer
-
€185 EUR
$208 USD
A
Retailer 2
-
€207 EUR
$232 USD
View
Final sale: no returns
A
Retailer 3
-
€215 EUR
$241 USD
View
Retailer 4
-
€229 EUR
$257 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€229 EUR
$257 USD
View
A
Retailer 6
-
€262 EUR
HK$2,300 HKD
View
B+
Retailer 7
-
€310 EUR
$348 USD
View
A
Retailer 8
-
€422 EUR
£373 GBP
View
A
Retailer 9
-
€464 EUR
$520 USD
View
A
Retailer 10
-
€465 EUR
$521 USD
View
A
Retailer 11
-
€485 EUR
View
B
Retailer 12
-
€737 EUR
$827 USD
View
Retailer 13
-
€740 EUR
$830 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
€740 EUR
$830 USD
View
B+
Retailer 15
-
€785 EUR
$881 USD
View
B
Retailer 16
-
€919 EUR
£812 GBP
View
Most Expensive
B
Brilliant Earth
16145445A · Nov 1
€1,186 EUR
$1,330 USD
View
16 more retailers have this diamond
Prices start from €185 EURSave up to €1,000 EUR

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
1.70ct Round
€185 EUR