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Cushion|Lab Grown|IGI

1.70ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG499114125

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG499114125

Diamond specifications and retailer prices

From €286 EUR
$319 USD
As of October 30, 2026
Save €988 EUR (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,273 EUR at MOH London · As of October 29, 2026
View at MOH London

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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG499114125 or 499114125. Listed at 11 retailers as of October 29, 2026, with prices from €286 to €1,273, a €988 spread on the same certified stone. MOH London lists it at €1,273. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499114125
Dimensions7.24 × 6.30 × 4.52 mm
L/W Ratio1.15
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
7.24 mm6.30 mm1.70 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG499114125
Side View
Table 64.0%Crown 34°Girdle: STK-ETKPavilion 38°Culet: NoneDepth 71.7%

Caratlytics Score

How it works →
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: Oct 30
Current: €1,273 EUR|Low: €204 EUR|High: €1,338 EUR|Avg: €685 EUR|+0.5%
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
October 30, 2026
Retailer 10€286 EUR
Retailer 9€316 EUR
Retailer 2€353 EUR
Retailer 13€412 EUR
Retailer 8€521 EUR
Retailer 6€524 EUR
Retailer 12€556 EUR
Retailer 3€565 EUR
Retailer 4€657 EUR
Retailer 5€1,007 EUR
Retailer 7€1,065 EUR
Retailer 11€1,197 EUR
MOH London€1,273 EUR

33 data points across 13 retailers

11 retailers€286 EUR to €1,273 EUR

A
Cheapest Retailer
-
€286 EUR
$319 USD
Final sale: no returns
A
Retailer 2
-
€316 EUR
$353 USD
View
A
Retailer 3
-
€353 EUR
£310 GBP
View
Retailer 4
-
€412 EUR
HK$3,600 HKD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
€521 EUR
$582 USD
View
B+
Retailer 6
-
€524 EUR
$585 USD
View
B+
Retailer 7
-
€556 EUR
$621 USD
View
B+
Retailer 8
-
€565 EUR
$631 USD
View
Retailer 9
-
€1,065 EUR
$1,190 USD
View
Price last confirmed 10 days ago
Retailer 10
-
€1,197 EUR
SGD 1,807 SGD
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
LG499114125 · Oct 29
€1,273 EUR
£1,120 GBP
View
10 more retailers have this diamond
Prices start from €286 EURSave up to €988 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
€286 EUR