CaratHunter
Plans
Cushion|Lab Grown|IGI

1.70ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG600340947

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG600340947

Diamond specifications and retailer prices

From €208 EUR
$232 USD
As of October 30, 2026
Save €1,010 EUR (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,217 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.7ct lab-grown cushion diamond

This 1.7ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG600340947 or 600340947. Listed at 12 retailers as of October 30, 2026, with prices from €208 to €1,217, a €1,010 spread on the same certified stone. Brilliant Earth lists it at €1,217. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600340947
Dimensions7.30 × 6.55 × 4.31 mm
L/W Ratio1.11
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
7.30 mm6.55 mm1.70 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600340947
Side View
Table 59.0%Crown 35°Girdle: STK-THKPavilion 32.2°Culet: NoneDepth 65.8%

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: Oct 30
Current: €1,217 EUR|Low: €208 EUR|High: €1,217 EUR|Avg: €529 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8€208 EUR
Retailer 9€264 EUR
Retailer 4€295 EUR
Retailer 6€311 EUR
Retailer 5€425 EUR
Retailer 10€466 EUR
Retailer 11€498 EUR
Retailer 3€749 EUR
Retailer 2€924 EUR
Retailer 7€1,090 EUR
Brilliant Earth€1,217 EUR

41 data points across 11 retailers

12 retailers€208 EUR to €1,217 EUR

A
Cheapest Retailer
-
€208 EUR
$232 USD
Final sale: no returns
A
Retailer 2
-
€264 EUR
HK$2,300 HKD
View
A
Retailer 3
-
€295 EUR
£260 GBP
View
B+
Retailer 4
-
€311 EUR
$348 USD
View
A
Retailer 5
-
€425 EUR
£374 GBP
View
A
Retailer 6
-
€466 EUR
$521 USD
View
A
Retailer 7
-
€498 EUR
$556 USD
View
B+
Retailer 8
-
€749 EUR
SGD 1,131 SGD
View
B
Retailer 9
-
€789 EUR
$881 USD
View
B+
Retailer 10
-
€924 EUR
£813 GBP
View
B
Retailer 11
-
€1,090 EUR
$1,218 USD
View
Most Expensive
B
Brilliant Earth
22273641A · Oct 31
€1,217 EUR
$1,360 USD
View
11 more retailers have this diamond
Prices start from €208 EURSave up to €1,010 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 Cushion
€208 EUR