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Oval|Lab Grown|IGI

1.85ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG516238514

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG516238514

Diamond specifications and retailer prices

From £315 GBP
$422 USD
As of October 30, 2026
Save £681 GBP (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £996 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.85ct lab-grown oval diamond

This 1.85ct lab-grown oval 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 LG516238514 or 516238514. Listed at 12 retailers as of October 28, 2026, with prices from £315 to £996, a £681 spread on the same certified stone. Rare Carat lists it at £996. 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

1.85
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG516238514
Dimensions9.35 × 6.87 × 4.43 mm
L/W Ratio1.36
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
9.35 mm6.87 mm1.85 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG516238514
Side View
Table 58.5%Crown 36.9°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.5%

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: £996 GBP|Low: £296 GBP|High: £1,055 GBP|Avg: £598 GBP|-5.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5£315 GBP
Retailer 2£331 GBP
Retailer 6£519 GBP
Retailer 4£584 GBP
Retailer 8£621 GBP
Retailer 7£622 GBP
Retailer 3£851 GBP
Rare Carat£996 GBP

40 data points across 8 retailers

12 retailers£315 GBP to £996 GBP

Retailer 1
-
£140 GBP
$188 USD
Price last confirmed 29 days ago
Retailer 2
-
£169 GBP
$227 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£181 GBP
$243 USD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
£315 GBP
$422 USD
View
A
Retailer 5
-
£331 GBP
View
B+
Retailer 6
-
£519 GBP
$695 USD
View
Retailer 7
-
£582 GBP
$780 USD
View
Price last confirmed 30 days ago
B
Retailer 8
-
£584 GBP
$782 USD
View
B
Retailer 9
-
£621 GBP
HK$6,500 HKD
View
B
Retailer 10
-
£622 GBP
$833 USD
View
B
Retailer 11
-
£851 GBP
View
Most Expensive
B
Rare Carat
516238514_l_516238514 · Oct 28
£996 GBP
$1,335 USD
View
11 more retailers have this diamond
Prices start from £315 GBPSave up to £681 GBP

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
1.85ct Oval
£315 GBP