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Round|Lab Grown|GIA

1.62ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 1459007599

Certificate GIA 1459007599

Diamond specifications and retailer prices

From £308 GBP
$413 USD
As of October 29, 2026
Save £1,097 GBP (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,406 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.62ct lab-grown round diamond

This 1.62ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1459007599. Listed at 15 retailers as of October 26, 2026, with prices from £308 to £1,406, a £1,097 spread on the same certified stone. MOH London lists it at £1,406. 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

1.62
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 1459007599
Dimensions7.58 × 7.56 × 4.60 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.58 mm7.56 mm1.62 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1459007599
Side View
Table 58.0%Crown 34°Girdle: NUL-NULPavilion 40.6°Culet: NoneDepth 60.8%

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 29
Current: £1,406 GBP|Low: £485 GBP|High: £1,421 GBP|Avg: £713 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5£493 GBP
Retailer 8£519 GBP
Retailer 7£566 GBP
Retailer 3£572 GBP
Retailer 4£615 GBP
Retailer 6£687 GBP
Retailer 2£874 GBP
MOH London£1,406 GBP

41 data points across 8 retailers

15 retailers£308 GBP to £1,406 GBP

A
Cheapest Retailer
-
£308 GBP
$413 USD
A
Retailer 2
-
£345 GBP
$462 USD
View
A
Retailer 3
-
£382 GBP
$512 USD
View
A
Retailer 4
-
£382 GBP
$512 USD
View
A
Retailer 5
-
£420 GBP
HK$4,400 HKD
View
B+
Retailer 6
-
£484 GBP
$649 USD
View
B+
Retailer 7
-
£493 GBP
$660 USD
View
B+
Retailer 8
-
£519 GBP
$695 USD
View
B+
Retailer 9
-
£566 GBP
$758 USD
View
B+
Retailer 10
-
£572 GBP
View
B+
Retailer 11
-
£615 GBP
€785 EUR
View
B+
Retailer 12
-
£687 GBP
$920 USD
View
B
Retailer 13
-
£874 GBP
$1,171 USD
View
B
Retailer 14
-
£1,228 GBP
$1,646 USD
View
Most Expensive
B
MOH London
1459007599 · Oct 26
£1,406 GBP
View
14 more retailers have this diamond
Prices start from £308 GBPSave up to £1,097 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
1.62ct Round
£308 GBP